What’s present perfect?
The tense is used to show an action has taken place at an indefinite time in the past.
Structures and Examples
Positive : s + have/has + third form of the verb +
complement
Negative: s + have/has +not + third form of the verb +
complement
Question: have/has+ s + third form of the verb +
complement
Negative Interrogative : have/has+ s + third form of the
verb + complement
Positive: She has done her homework.
Negative: She has not done her homework.
Question: Has she done her homework?
Hasn’t she done her homework?
3.
Usages
Used totalk about recent actions that the result is in present.
Example: Mom I’ve cleaned the refrigerator. It looks new.
Used to talk about actions occurring in an incomplete period of time. Indicated
by today, this morning, afternoon, evening, week , month ,year and etc.
Example: They have visited us several times this week.
Used to talk about habitual actions.
Example: She has never kept my secrets.
Used to describe repeated actions in an unspecific period of time between the
past and now. The expressions twice, once, several times, three times, many
times.
Example: I’ve seen my fiancé three times.
4.
Present perfect withsince and for
Present perfect with for and since is used to express an action which lasts
throughout an incomplete period. Action begin in the past and continuous to
present.
For: With a period of time.
We have been in Paris for ten years.( still live there)
Since : Point the action started
We have been in Paris since 2020.(still here)