Present Perfect Tense
When do we use the present perfect tense?
In stating actions that began in the past and continues in the present
Ex. I have waited for more than four hours now.
In stating actions that happened at an indefinite time before now
Ex. I have sung him a song.
In stating actions in the past that has an effect on the present time
Ex. Meat prices have recently gone up.
Note: You can’t use the Present Perfect tense with specific time expressions like yesterday, one year ago, when I was a baby, when I was in Holland, at that time, that moment, etc. However, you can use the Present Perfect with unspecific expressions such as ever, never, once, several times, before, so far, already, yet, etc.
How do we make/form the Present Perfect?
In positive sentences=subject + auxiliary verb + past participle
Ex. He has sent me roses.
In negative sentences=subject+ auxiliary verb + not + past participle
Ex. Debbie has not seen her new car yet.
In questions=auxiliary verb + subject + past participle
Ex. Has he apologized to you?
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