Conjugation of verb "To change"
Negative
He/She/It doesn't change.
Present Simple Continuous
Negative
He/She/It isn't changing.
Negative
He/She/It wasn't changing.
Negative
He/She/It hasn't changed.
Present Perfect Continuous
Affirmative
He/She/It's been changing.
Negative
You haven't been changing.
We haven't been changing.
He/She/It hasn't been changing.
You haven't been changing.
They haven't been changing.
Interrogative
Has he/she/it been changing?
Negative
He/She/It hadn't changed.
Affirmative
He/She/It'd been changing.
Negative
You hadn't been changing.
He/She/It hadn't been changing.
You hadn't been changing.
They hadn't been changing.
Interrogative
Had he/she/it been changing?
Affirmative
He/She/It'll have changed.
Negative
He/She/It won't have changed.
Interrogative
Will he/she/it have changed?
Negative
He/She/It wouldn't change.
Affirmative
He/She/It'd have changed.
Negative
You wouldn't have changed.
We wouldn't have changed.
He/She/It wouldn't have changed.
You wouldn't have changed.
They wouldn't have changed.
Interrogative
Would he/she/it have changed?