English verb conjugation
COULD PRATTLE

Regular verb: prattle - prattled - prattled

Affirmation

Simple form	V-ing form
I could prattle you could prattle he could prattle we could prattle you could prattle they could prattle	I could be prattling you could be prattling he could be prattling we could be prattling you could be prattling they could be prattling
Perfect	V-ing perfect
I could have prattled you could have prattled he could have prattled we could have prattled you could have prattled they could have prattled	I could have been prattling you could have been prattling he could have been prattling we could have been prattling you could have been prattling they could have been prattling

Negation

Simple form	V-ing form
I couldn't prattle you couldn't prattle he couldn't prattle we couldn't prattle you couldn't prattle they couldn't prattle	I couldn't be prattling you couldn't be prattling he couldn't be prattling we couldn't be prattling you couldn't be prattling they couldn't be prattling
Perfect	V-ing perfect
I couldn't have prattled you couldn't have prattled he couldn't have prattled we couldn't have prattled you couldn't have prattled they couldn't have prattled	I couldn't have been prattling you couldn't have been prattling he couldn't have been prattling we couldn't have been prattling you couldn't have been prattling they couldn't have been prattling

Interrogative form

Simple form	V-ing form
could I prattle? could you prattle? could he prattle? could we prattle? could you prattle? could they prattle?	could I be prattling? could you be prattling? could he be prattling? could we be prattling? could you be prattling? could they be prattling?
Perfect	V-ing perfect
could I have prattled? could you have prattled? could he have prattled? could we have prattled? could you have prattled? could they have prattled?	could I have been prattling? could you have been prattling? could he have been prattling? could we have been prattling? could you have been prattling? could they have been prattling?

Interro-negative form

Simple form	V-ing form
couldn't I prattle? couldn't you prattle? couldn't he prattle? couldn't we prattle? couldn't you prattle? couldn't they prattle?	couldn't I be prattling? couldn't you be prattling? couldn't he be prattling? couldn't we be prattling? couldn't you be prattling? couldn't they be prattling?
Perfect	V-ing perfect
couldn't I have prattled? couldn't you have prattled? couldn't he have prattled? couldn't we have prattled? couldn't you have prattled? couldn't they have prattled?	couldn't I have been prattling? couldn't you have been prattling? couldn't he have been prattling? couldn't we have been prattling? couldn't you have been prattling? couldn't they have been prattling?