English verb conjugation
CAN FORESTALL

Regular verb: forestall - forestalled - forestalled

Affirmation

Simple form	V-ing form
I can forestall you can forestall he can forestall we can forestall you can forestall they can forestall	I can be forestalling you can be forestalling he can be forestalling we can be forestalling you can be forestalling they can be forestalling
Perfect	V-ing perfect
I can have forestalled you can have forestalled he can have forestalled we can have forestalled you can have forestalled they can have forestalled	I can have been forestalling you can have been forestalling he can have been forestalling we can have been forestalling you can have been forestalling they can have been forestalling

Negation

Simple form	V-ing form
I can't forestall you can't forestall he can't forestall we can't forestall you can't forestall they can't forestall	I can't be forestalling you can't be forestalling he can't be forestalling we can't be forestalling you can't be forestalling they can't be forestalling
Perfect	V-ing perfect
I can't have forestalled you can't have forestalled he can't have forestalled we can't have forestalled you can't have forestalled they can't have forestalled	I can't have been forestalling you can't have been forestalling he can't have been forestalling we can't have been forestalling you can't have been forestalling they can't have been forestalling

Interrogative form

Simple form	V-ing form
can I forestall? can you forestall? can he forestall? can we forestall? can you forestall? can they forestall?	can I be forestalling? can you be forestalling? can he be forestalling? can we be forestalling? can you be forestalling? can they be forestalling?
Perfect	V-ing perfect
can I have forestalled? can you have forestalled? can he have forestalled? can we have forestalled? can you have forestalled? can they have forestalled?	can I have been forestalling? can you have been forestalling? can he have been forestalling? can we have been forestalling? can you have been forestalling? can they have been forestalling?

Interro-negative form

Simple form	V-ing form
can't I forestall? can't you forestall? can't he forestall? can't we forestall? can't you forestall? can't they forestall?	can't I be forestalling? can't you be forestalling? can't he be forestalling? can't we be forestalling? can't you be forestalling? can't they be forestalling?
Perfect	V-ing perfect
can't I have forestalled? can't you have forestalled? can't he have forestalled? can't we have forestalled? can't you have forestalled? can't they have forestalled?	can't I have been forestalling? can't you have been forestalling? can't he have been forestalling? can't we have been forestalling? can't you have been forestalling? can't they have been forestalling?