English verb conjugation
COULD THRALL

Regular verb: thrall - thralled - thralled

Affirmation

Simple form	V-ing form
I could thrall you could thrall he could thrall we could thrall you could thrall they could thrall	I could be thralling you could be thralling he could be thralling we could be thralling you could be thralling they could be thralling
Perfect	V-ing perfect
I could have thralled you could have thralled he could have thralled we could have thralled you could have thralled they could have thralled	I could have been thralling you could have been thralling he could have been thralling we could have been thralling you could have been thralling they could have been thralling

Negation

Simple form	V-ing form
I couldn't thrall you couldn't thrall he couldn't thrall we couldn't thrall you couldn't thrall they couldn't thrall	I couldn't be thralling you couldn't be thralling he couldn't be thralling we couldn't be thralling you couldn't be thralling they couldn't be thralling
Perfect	V-ing perfect
I couldn't have thralled you couldn't have thralled he couldn't have thralled we couldn't have thralled you couldn't have thralled they couldn't have thralled	I couldn't have been thralling you couldn't have been thralling he couldn't have been thralling we couldn't have been thralling you couldn't have been thralling they couldn't have been thralling

Interrogative form

Simple form	V-ing form
could I thrall? could you thrall? could he thrall? could we thrall? could you thrall? could they thrall?	could I be thralling? could you be thralling? could he be thralling? could we be thralling? could you be thralling? could they be thralling?
Perfect	V-ing perfect
could I have thralled? could you have thralled? could he have thralled? could we have thralled? could you have thralled? could they have thralled?	could I have been thralling? could you have been thralling? could he have been thralling? could we have been thralling? could you have been thralling? could they have been thralling?

Interro-negative form

Simple form	V-ing form
couldn't I thrall? couldn't you thrall? couldn't he thrall? couldn't we thrall? couldn't you thrall? couldn't they thrall?	couldn't I be thralling? couldn't you be thralling? couldn't he be thralling? couldn't we be thralling? couldn't you be thralling? couldn't they be thralling?
Perfect	V-ing perfect
couldn't I have thralled? couldn't you have thralled? couldn't he have thralled? couldn't we have thralled? couldn't you have thralled? couldn't they have thralled?	couldn't I have been thralling? couldn't you have been thralling? couldn't he have been thralling? couldn't we have been thralling? couldn't you have been thralling? couldn't they have been thralling?