The tense depends on the subject pronoun. You either use "have" or "has" with "walked."
Present Perfect Examples:
I have walked.
You have walked.
We have walked.
They have walked.
He has walked.
She has walked.
It has walked.
I/you/we/they have walked. He/she/it haswalked.
Present perfect tense and present perfect continuous tense.
The present perfect tense of "hid" is "have/has hidden."
Have and has are used in the present perfect tense and the present perfect continuous tense.
Present tense, past tense, future tense, future perfect tense, present perfect tense and past perfect tense.
I/you/we/they have walked. He/she/it haswalked.
Present perfect tense and present perfect continuous tense.
The present perfect tense of "hid" is "have/has hidden."
Have and has are used in the present perfect tense and the present perfect continuous tense.
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."
They are Simple Tense past, present and future......as in walked, walk and will walk. Continuous past and present. as in was walking and am walking Perfect present, as in have walked Perfect continuous, as in have been walking
Present tense, past tense, future tense, future perfect tense, present perfect tense and past perfect tense.
The present perfect tense of leave is have/has left. The present perfect tense of eat is have/has eaten.
The present perfect tense is has/have existed.
No. Were is a past tense of "be". The present perfect tense uses "have" and "has".
Past perfect tense, past perfect continuous tense, present perfect tense, present perfect continuous tense, future perfect tense and future perfect continuous tense.