I need to know when to use present perfect tense and where to use ?
The time of the action is before the past, but it's not specified, and usually, the result of the action is the concern. There's a few key situations in which the auxiliary verb "have" is used. 1) Expressing how long you've been somewhere or you've been doing something Example: I have lived in the United States since 2015.
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The time of the action is before the past, but it's not specified, and usually, the result of the action is the concern. There's a few key situations in which the auxiliary verb "have" is used.
1) Expressing how long you've been somewhere or you've been doing something
Example: I have lived in the United States since 2015.
Example: I have been a carpenter since