The present perfect tense is a crucial verb form in English that connects past actions to the present moment. The action in the past has a result now.
a) Life Experiences (Unspecified Time)
Describes actions that occurred at an indefinite time before now.
Key Indicators: ever, never, before, once, many times
Examples:
I have visited Japan twice.
She has never eaten sushi.
b) Recent Past Actions with Present Relevance
Emphasizes completed actions that affect the current situation.
Key Indicators: just, recently, lately
Examples:
They have just arrived. (They're here now)
I have lost my keys. (Still missing)
c) Actions Continuing from Past to Present
Shows duration of ongoing situations.
Key Indicators: for, since, how long
Examples:
We have lived here since 2010. (Still living here)
He has worked at the company for five years. (Still works there)
for + duration:
Examples: I have known her for ten years.
since + starting point:
Examples: They have been married since 2015.
d) Multiple Past Actions at Different Times
Describes repeated actions that may happen again.
Examples:
The phone has rung four times today.
I have watched that show several times.
Subject + have / has + past participle
Examples:
I / You / We / They have worked here before.
He / She / It has worked here since 2020.
Regular verbs: add -ed
Examples: work → worked * play → played
Irregular verbs: must memorize
Examples: go → gone * eat → eaten
a) Affirmative Sentences (Positive)
Subject + have / has + past participle
Examples: I have visited Paris.
b) Negative Sentences
Subject + have / has + not + past participle
Examples: We haven't seen that movie.
c) Questions (Interrogative Sentences)
Have / Has + subject + past participle?
Examples: Have you eaten dinner?