It is "have/has written".
The past perfect tense is 'I had written'.The present perfect tense is 'I/you/we/they have written. He/she/it has written.
The present perfect tense is created with have/has + a past participle.I/We/You/They have recycledHe/She/It has recycled
He is thinking
The present perfect tense is:I/You/We/They have written.He/She/It has written.The past perfect tense is:Had written.The future perfect tense is:Will have written.
The third person singular conjugation of the verb "write" in the present perfect tense is "has written."
The past perfect is had written.The present perfect is has/have written.The future perfect is will have written.
Present tense
The present perfect tense is Have/Has Hidden.
The present perfect tense is has/have existed.
Yes, when using the present perfect 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
Was is a past tense conjugation of be. The present perfect tense of be is have/has been.I/We/You/They have beenHe/She/It has been