1. 现在完成时的
In grammar, the present perfect tenses of a verb are the ones used to talk about things which happened before the time you are speaking or writing but are relevant to the present situation, or things that began in the past and are still happening. The simple present perfect tense uses 'have' or 'has' and the past participle of the verb, as in 'They have decided what to do'.

1. a perfective tense used to express action completed in the present

e.g. `I have finished' is an example of the present perfect

Synonym: present perfect tense