English verb conjugation
COULD PALL

Regular verb: pall - palled - palled

Affirmation

Simple form	V-ing form
I could pall you could pall he could pall we could pall you could pall they could pall	I could be palling you could be palling he could be palling we could be palling you could be palling they could be palling
Perfect	V-ing perfect
I could have palled you could have palled he could have palled we could have palled you could have palled they could have palled	I could have been palling you could have been palling he could have been palling we could have been palling you could have been palling they could have been palling

Negation

Simple form	V-ing form
I couldn't pall you couldn't pall he couldn't pall we couldn't pall you couldn't pall they couldn't pall	I couldn't be palling you couldn't be palling he couldn't be palling we couldn't be palling you couldn't be palling they couldn't be palling
Perfect	V-ing perfect
I couldn't have palled you couldn't have palled he couldn't have palled we couldn't have palled you couldn't have palled they couldn't have palled	I couldn't have been palling you couldn't have been palling he couldn't have been palling we couldn't have been palling you couldn't have been palling they couldn't have been palling

Interrogative form

Simple form	V-ing form
could I pall? could you pall? could he pall? could we pall? could you pall? could they pall?	could I be palling? could you be palling? could he be palling? could we be palling? could you be palling? could they be palling?
Perfect	V-ing perfect
could I have palled? could you have palled? could he have palled? could we have palled? could you have palled? could they have palled?	could I have been palling? could you have been palling? could he have been palling? could we have been palling? could you have been palling? could they have been palling?

Interro-negative form

Simple form	V-ing form
couldn't I pall? couldn't you pall? couldn't he pall? couldn't we pall? couldn't you pall? couldn't they pall?	couldn't I be palling? couldn't you be palling? couldn't he be palling? couldn't we be palling? couldn't you be palling? couldn't they be palling?
Perfect	V-ing perfect
couldn't I have palled? couldn't you have palled? couldn't he have palled? couldn't we have palled? couldn't you have palled? couldn't they have palled?	couldn't I have been palling? couldn't you have been palling? couldn't he have been palling? couldn't we have been palling? couldn't you have been palling? couldn't they have been palling?