The present perfect is created with has/have + a past participle.
The present perfect tense of swim is:I/You/We/They have swum.He/She/It has swum.
The past tense is swam. (I swam, you swam, they swam) The past participle is swum. Present perfect : he has swum Past perfect : he had swum Future perfect: he will have swum
I swim. (Present) I swam. I have swum.
I swim. (Present) I swam. I have swum.
The present perfect form of "present" is "have/has presented."
The present perfect of follow is has/have followed.
Swam is the past tense of swim. The present participle for swim is swimming.
The present perfect tense is Have/Has Hidden.
The present perfect tense is has/have existed.
have/has planned (PRESENT PERFECT)
The present perfect is 'I have sung'
The present perfect tense of "are" is "have been."