I/We/You/They have improved
He/She/It has improved
Have been improving. --- Have been improving is the present perfect progressive tense conjugated for first and second person singular and first, second, and third person plural. The present perfect tense of improve: I have improved You have improved He/she/it has improved We have improved They have improved
Present tense
The present perfect tense is Have/Has Hidden.
The present perfect tense is has/have existed.
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
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/has clapped'.
"have tried" is the present perfect tense.
The past tense is sped.The present perfect tense is have/has sped.
Present Tense, Paste Tense, Future Tense, Future Perfect Tense, Present Perfect Tense, Past Perfect Tense