The Present Perfect Tense of feed is have/has fed. See below for the different usages:
Singular
I have fed
You have fed
He/she/it has fed
Plural
We have fed
You have fed
They have fed
Have/has fed.
I/We/You/They have fed
He/She/It has fed
Present perfect tense.
The present perfect tense of "hid" is "have/has hidden."
The present perfect tense of "exist" is "has/have existed."
'Is feeding' is the present tense of 'will feed'.
The present perfect tense of "was" is "have been".
present tense past tense future tense present perfect tense past perfect tense future perfect tense present progressive tense past progressive tense future progressive tense present perfect progressive tense past perfect progressive tense future perfect progressive tense
The present perfect tense of "are" is "have been."
The present perfect tense of leave is have/has left. The present perfect tense of eat is have/has eaten.
The present perfect tense of "clap" is "have clapped" or "has clapped."
"have tried" is the present perfect tense.
Present Tense, Paste Tense, Future Tense, Future Perfect Tense, Present Perfect Tense, Past Perfect Tense
The present perfect tense of "protest" is "have/has protested."