I/you/we/they have read. He/she/it has read.
The present perfect tense for "read" is "has/have read."
You / we / they were reading.
i / he / she / it was reading
Have/Has read.
have/has been reading
read
Present perfect tense.
"Have read" is the present perfect tense.
The future perfect tense of read is will have read.
There is a really comprehensive, easy-to-read discussion of the present perfect tense at the link, below.
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."
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.