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'.
The present progressive tense of investigate is:I am investigating.You/We/They are investigating.He/She/It is investigating.
The present perfect progressive tense of "clean" is "have/has been cleaning."
Clean is not past perfect. It's present simple. The past perfect tense of clean is had cleaned.
Present perfect tense.
The present perfect tense of "hid" is "have/has hidden."
No, "will clean" is future tense. Present tense would be "cleans."
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."
The present perfect tense of leave is have/has left. The present perfect tense of eat is have/has eaten.
"have tried" is the present perfect tense.
The present perfect tense of "exist" is "has/have existed."
The 6 forms of perfect tenses are: present perfect, past perfect, future perfect, present perfect continuous, past perfect continuous, and future perfect continuous.
The future perfect tense of clean is will have cleaned.