The present perfect tense of clean is:
The future perfect tense of clean is will have cleaned.
It is "clean/cleans".
Use will + verb or going + verb or present continuous to make a future sentence.will - I will clean the house tomorrow.going to - I am going to clean the house on Saturday.present continuous -- I am cleaning the house on the weekend.The past tense being "Dirty"
The present tense of 'knew' is 'know'.
Will clean.Use will + verb or going + verb or present continuous to make a future sentence.will - I will clean the house tomorrow.going to - I am going to clean the house on Saturday.present continuous -- I am cleaning the house on the weekend.Read more: http://wiki.answers.com/What_is_the_future_tense_for_clean#ixzz1IjgOuNpB
I/We/You/They have been cleaningHe/She/It has been cleaning
Clean is not past perfect. It's present simple. The past perfect tense of clean is had cleaned.
Present tense
No, will clean is future tense. Clean is 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."
"have tried" is the present 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 of clap is 'have/has clapped'.