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