Tempo do Verbo |
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A verb indicates the time of an action, event or condition by changing its form. Through the use of a sequence of tenses in a sentence or in a paragraph, it is possible to indicate the complex temporal relationship of actions, events, and conditions There are many ways of categorising the twelve possible verb tenses. The verb tenses may be categorised according to the time frame: past tenses, present tenses, and future tenses. Verb Tense: TimeThe four past tenses are
The four present tenses are
Note that the present perfect and present perfect progressive are a present not past tenses -- that idea is that the speaker is currently in the state of having gone or having been going. The four future tenses are
Verb Tense: AspectVerb tenses may also be categorised according to aspect. Aspect refers to the nature of the action described by the verb. There are three aspects: indefinite (or simple), complete (or perfect), continuing (or progressive). The three indefinite tenses, or simple tenses, describe an action but do not state whether the action is finished:
A verb in the indefinite aspect is used when the beginning or ending of an action, an event, or condition is unknown or unimportant to the meaning of the sentence. The indefinite aspect is also used to used to indicate an habitual or repeated action, event, or condition. The three complete tenses, or perfect tenses, describe a finished action:
A verb in the complete aspect indicates that the end of the action, event, or condition is known and the is used to emphasise the fact that the action is complete. The action may, however, be completed in the present, in the past or in the future. The three incomplete tenses, or progressive tenses, describe an unfinished action:
A verb in the continuing aspect indicates that the action, event, or condition is ongoing in the present, the past or the future. It is also possible to combine the complete tenses and the incomplete tenses, to describe an action which was in progress and then finished:
The Function of Verb TensesThe Simple Present TenseThe simple present is used to describe an action, an event, or condition that is occurring in the present, at the moment of speaking or writing. The simple present is used when the precise beginning or ending of a present action, event, or condition is unknown or is unimportant to the meaning of the sentence. Each of the highlighted verbs in the following sentences is in the simple present tense and each sentence describes an action taking place in the present:
The simple present is used to express general truths such as scientific fact, as in the following sentences:
The simple present is used to indicate a habitual action, event, or condition, as in the following sentences:
The simple present is also used when writing about works of art, as in the following sentences.
The simple present can also be used to refer to a future event when used in conjunction with an adverb or adverbial phrase, as in the following sentences.
The Present ProgressiveWhile the simple present and the present progressive are sometimes used interchangeably, the present progressive emphasises the continuing nature of an act, event, or condition. Each of the highlighted verbs in the following sentences is in the present progressive tense. In each sentence the on-going nature of the action is emphasised by the use of the present progressive rather than the simple present.
The present progressive is occasionally used to refer to a future event when used in conjunction with an adverb or adverbial phrase, as in the following sentences.
The Present Perfect TenseThe present perfect tense is used to describe action that began in the past and continues into the present or has just been completed at the moment of utterance. The present perfect is often used to suggest that a past action still has an effect upon something happening in the present. Each of the highlighted compound verbs in the following sentences is in the present perfect tense.
This sentence suggest that the documents were not delivered in the past and that they are still undelivered.
The writer of this sentence uses the present perfect in order to suggest that the decision made in the past is still of importance in the present.
Here both actions took place sometime in the past and continue to influence the present.
In this sentence, the writer uses the present perfect to indicate that a condition (the heat wave) began in past and continues to affect the present.
Here the action of dreaming has begun in the past and continues into the present. The Present Perfect Progressive TenseLike the present perfect, the present perfect progressive is used to describe an action, event, or condition that has begun in the past and continues into the present. The present perfect progressive, however, is used to stress the on-going nature of that action, condition, or event. Each of the highlighted verbs in the following sentences is in the present perfect progressive tense and each sentence suggests that the action began in the past and is continuing into the present.
The Simple Past TenseThe simple past is used to describe an action, an event, or condition that occurred in the past, sometime before the moment of speaking or writing. Each of the highlighted verbs in the following sentences is in the simple past tense and each sentence describes an action taking place at some point in past.
The Past Progressive TenseThe past progressive tense is used to described actions ongoing in the past. These actions often take place within a specific time frame. While actions referred to in the present progressive have some connection to the present, actions referred in the past progressive have no immediate or obvious connection to the present. The on-going actions took place and were completed at some point well before the time of speaking or writing. Each of the highlighted verbs in the following sentences is in the past progressive tense.
This sentence describes an action that took place over a period of continuous time in the past. The cat's actions have no immediate relationship to anything occurring now in the present.
Here the action "was telling" took place in the past and continued for some time in the past.
This sentence describes actions ("ran" and "was writing") that took place sometime in the past, and emphasises the continuing nature of one of the actions ("was writing").
Here the ongoing action of "waiting" occurred at some time unconnected to the present.
In this sentence, the action of hiding took place over an extended period of time and the continuing nature of the hiding is emphasised. The Past Perfect TenseThe past perfect tense is used to refer to actions that took place and were completed in the past. The past perfect is often used to emphasis that one action, event or condition ended before another past action, event, or condition began. Each of the highlighted verbs in the following sentences is in the past perfect.
All the events in this sentence took place in the past, but the act of closing the store takes place before Miriam arrives at the store.
Here the praise ("had raved") precedes the finding ("located") of the restaurant. Both actions took place sometime before the moment of speaking or writing.
In this sentence, both actions take place in the past, but the eating of the hay ("had eaten") preceded the eating of the oats ("fed").
While the sentence "The heat wave has lasted three weeks" suggests that a condition began in the past and continues into the present, this sentence describes an action that began and ended sometime in the past ("had lasted"). By using the past perfect the writer indicates that the heat wave has no connection to any events occurring in the present.
Here the learning took place and was completed at a specific time in the past. By using the past perfect rather than the simple past ("learned"), the writer emphasises that the learning preceded the feeling of independence. The Past Perfect Progressive TenseThe past perfect progressive is used to indicate that a continuing action in the past began before another past action began or interrupted the first action. Each of the highlighted compound verbs in the following sentences is in the past perfect progressive tense.
Here the action of the toddlers ("had been running") is ongoing in the past and precedes the actions of the teachers ("shooed") which also takes place in the past.
In this example, the ongoing action of "talking" precedes another past action ("bought").
Here, the action of digging ("had been digging") took place in the past and occurred over a period of time. The digging was followed by the action of finding ("found").
In this sentence the act of discovery ("discovered") occurred in the past but after the ongoing and repeated action of reading ("had been reading").
This sentence is a bit more complex in that it contains three different past verb tenses. The sequence of tenses conveys a complex set of information. The past perfect progressive ("had been chopping") is used to emphasise the ongoing nature of the past act of chopping. While a second past perfect progressive ("had been mincing") could be used, the past perfect ("had minced") is used to suggest that act of mincing was completed. The simple past ("realized") is used to describe the action closest to the present, an action that followed both the chopping and the mincing. The Simple Future TenseThe simple future is used to refer to actions that will take place after the act of speaking or writing. Each of the highlighted verbs in the following sentences is in the simple future tense.
The Future Progressive TenseThe future progressive tense is used to describe actions ongoing in the future. The future progressive is used to refer to continuing action that will occur in the future. Each of the highlighted compound verbs in the following sentences is in the future progressive tense.
The Future Perfect TenseThe future perfect is used to refer to an action that will be completed sometime in the future before another action takes place. Each of the highlighted verbs in the following sentences is in the future perfect tense.
In this sentence, the act of operating ("will have operated") takes place in the future sometime before the act of attending ("attends").
Here, the plumbers' act of soldering ("will have soldered") will precede the act of leaving ("leave").
In this sentence, the act of returning from the store ("get back") takes place after the act of writing ("will have written").
In this example, the act of finishing ("will have finished") occurs well before the act of starting ("starts").
Here, the act of getting out of bed occurs sometime after the writing of the exam. The Future Perfect Progressive TenseThe future perfect progressive tense is used to indicate a continuing action that will be completed at some specified time in the future. This tense is rarely used. Each of the highlighted verbs in the following sentences is in the future perfect progressive tense.
In this sentence, the future perfect progressive is used to indicate the ongoing nature of the future act of the studying. The act of studying ("will have been studying") will occur before the upcoming end of term.
Similarly in this sentence, the ongoing nature of a future act ("will have been arguing") is emphasised by the use of the future perfect progressive. The act of sustained arguing will take place before the meeting is over.
Here the ongoing action of fermentation will precede ("will have been fermenting") the act of returning.
English speakers form many verb tenses by combining one of principal parts of the verb with one or more auxiliary verbs. In order to form verb tenses you need a good grasp of the auxiliaries and the principal parts of the verb. There are four principal parts: the basic form, the present participle, the past form, and the past participle. The basic form (or root of the verb is the form listed in the dictionary and is usually identical to the first person singular form of the simple present tense (except in the case of the verb "to be"):
The infinitive form of the verb is a compound verb made up of the the preposition "to" and the basic form of the verb:
To form the present participle, add "-ing" to the basic form of the verb:
Note that you cannot use the present participle as a predicate unless you use an auxiliary verb with it -- the word group "I walking to the store" is an incomplete and ungrammatical sentence, while word group "I am walking to the store" is a complete sentence. You will often use the present participle as a modifier. The past form of verbs is a little trickier. If the verb is regular (or weak, you can create the past form by adding "-ed", "-d", or "-t" to the present form. When a basic form ends in "-y", you changed the "-y" to "-i-"; in many cases you should also double terminal consonants before adding "-ed" (see the section on Spelling words with Double Consonants).
The past participle of regular verbs is usually identical to the past form, while the past participle of irregular verbs is often different:
Irregular VerbsIrregular verbs form the past participle and the past form without "-(e)d" or "-t", and frequently their past form and past participle are different. For example, the past form of the verb "break" is "broke" and the past participle is "broken". This list contains the most common verbs that form their past tenses irregularly:
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