English verb conjugation
COULD MEWL

Regular verb: mewl - mewled - mewled

Affirmation

Simple form	V-ing form
I could mewl you could mewl he could mewl we could mewl you could mewl they could mewl	I could be mewling you could be mewling he could be mewling we could be mewling you could be mewling they could be mewling
Perfect	V-ing perfect
I could have mewled you could have mewled he could have mewled we could have mewled you could have mewled they could have mewled	I could have been mewling you could have been mewling he could have been mewling we could have been mewling you could have been mewling they could have been mewling

Negation

Simple form	V-ing form
I couldn't mewl you couldn't mewl he couldn't mewl we couldn't mewl you couldn't mewl they couldn't mewl	I couldn't be mewling you couldn't be mewling he couldn't be mewling we couldn't be mewling you couldn't be mewling they couldn't be mewling
Perfect	V-ing perfect
I couldn't have mewled you couldn't have mewled he couldn't have mewled we couldn't have mewled you couldn't have mewled they couldn't have mewled	I couldn't have been mewling you couldn't have been mewling he couldn't have been mewling we couldn't have been mewling you couldn't have been mewling they couldn't have been mewling

Interrogative form

Simple form	V-ing form
could I mewl? could you mewl? could he mewl? could we mewl? could you mewl? could they mewl?	could I be mewling? could you be mewling? could he be mewling? could we be mewling? could you be mewling? could they be mewling?
Perfect	V-ing perfect
could I have mewled? could you have mewled? could he have mewled? could we have mewled? could you have mewled? could they have mewled?	could I have been mewling? could you have been mewling? could he have been mewling? could we have been mewling? could you have been mewling? could they have been mewling?

Interro-negative form

Simple form	V-ing form
couldn't I mewl? couldn't you mewl? couldn't he mewl? couldn't we mewl? couldn't you mewl? couldn't they mewl?	couldn't I be mewling? couldn't you be mewling? couldn't he be mewling? couldn't we be mewling? couldn't you be mewling? couldn't they be mewling?
Perfect	V-ing perfect
couldn't I have mewled? couldn't you have mewled? couldn't he have mewled? couldn't we have mewled? couldn't you have mewled? couldn't they have mewled?	couldn't I have been mewling? couldn't you have been mewling? couldn't he have been mewling? couldn't we have been mewling? couldn't you have been mewling? couldn't they have been mewling?