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