Aspect

Definition

Aspect is a grammatical element that has to do with how an action, state of being, or event as described by a verb relates to time. Aspect is often confused with tense. While tense is concerned with when the action, state of being, or event occurs (past, present, or future), aspect is concerned with how it occurs in time. It is through aspect that we understand whether an action takes place at a single point in time, during a continuous range of time, or repetitively.
Sometimes aspect is conveyed by a sentence’s structure, through a combination of particles, verbs, and verb phrases; other times, sentence structure may be used for more than one aspect, so we rely on the overall sentence to understand its temporal meaning.

Perfective and imperfective aspect

The most common distinction made regarding aspect is between the perfective and imperfective aspects. While other languages mark the difference by using two separate verb forms, English does not.
The perfective aspect can be conveyed through a variety of verb structures. It is used when we draw attention to an action as a whole, summarizing it. The perfective aspect may occur in past, present, or future actions and events. For example:
  • “I ate dinner.”
  • “I swim like a fish.”
  • “I have never been there before.”
  • “We will help you tomorrow.”
The imperfective aspect, on the other hand, is used to draw attention to the action as having an internal structure (rather than as a whole, complete action). Like the perfective, this is the case regardless of when the event occurs.
One instance of the imperfective is when we relate an action that is considered to be in progress at the moment of speaking (or at the time of another event). This is usually conveyed through the continuous aspect. For example:
  • “I was washing dishes when she came through the door.”
We also use the imperfective when we describe actions or events as occurring repetitively, either now or in the past:
  • “We used to go traveling a lot.”
  • “John runs five miles every day.”
This is known as the habitual aspect.

Aspects of verb tenses

Traditionally, each verb tense is said to have four aspects, or temporal structures: the simple, the perfect, the continuous, and the perfect continuous. These traditional aspects of the tenses do not always coincide with theory on perfective aspect and imperfective aspect—it should be remembered that certain structures may express perfective aspect in some cases and imperfective aspect in others, depending on the intended meaning.

Aspects of the present tense

The present tense is used for repeated actions, and for actions occurring or having a result in the present. The different aspects of the present tense can be found in the table below:
Aspect
Structure
Examples
Simple
Subject + present verb
"I go shopping on Tuesdays."
"She runs fast."
Perfect
Subject + have/has + past participle
"I have eaten here before."
"She has lived here for a long time."
Continuous
Subject + is/are + present participle
"We are cooking dinner."
"He is singing a song."
Perfect Continuous
Subject + have/has + been + present participle
"He has been thinking about it."
"I have been taking an art class."
Usually, the simple and the perfect aspects match up with the perfective aspect in grammatical theory. However, as mentioned, this is not always the case. It could be argued in this case that the simple aspect of the present tense actually corresponds with the imperfective aspect, since it is usually used to convey habitual acts, as in:
  • “I go to school every day.”
  • “We go shopping on Saturdays.”

Aspects of the past tense

Like the present, the past tense also has four traditional aspects, which can be found in the table below:
Aspect
Structure
Examples
Simple
Subject + past verb
"I went shopping on Tuesday."
"She ran fast."
Perfect
Subject + had + past participle
"I had eaten here before."
"She had lived here for a long time."
Continuous
Subject + was/were + present participle
"We were cooking dinner."
"He was singing a song."
Perfect Continuous
Subject + had + been + present participle
"He had been thinking about it."
"I had been taking an art class."
The simple and perfect simple tenses generally correspond with the perfective aspect, while the continuous and perfect continuous correspond with the imperfective aspect. Again, these do not always match up along clear lines, and we should consider what the verb phrase conveys overall to decide whether the sentence has perfective or imperfective aspect.

Aspects of the future tense

Although English does not have an inflected verb form for future tense, there are several structures that we use to convey future meaning, namely will/would/be going to + verb. The different aspects of these structures are found in the table:
Aspect
Structure
Examples
Simple
Subject + will/would/be going to + infinitive
"I will go shopping on Tuesday."
" She is going to run fast."
Perfect
Subject + will have + past participle
"I will have eaten before arriving."
"She will have lived here for a long time."
Continuous
Subject + will/would/be going to + be + present participle
"We are going to be cooking dinner."
"He will be singing a song."
Perfect Continuous
Subject + will have/would have/be going to + have + been + present participle
"He’ll have been thinking about it."
"I would have been taking an art class."
Again, the simple and perfect aspects generally correspond with perfective aspect in the future, while the continuous and perfect continuous structures correspond with the imperfective.
Quiz

1. In grammar, aspect is concerned with ________ .




2. The perfective aspect is used when we view an action as ________.





3. The imperfective aspect is used when we view an action as ________.






4. Which of the following sentences conveys the continuous aspect?





5. Which of the following sentences uses the perfect aspect?”





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