I can forestall you can forestall he can forestall we can forestall you can forestall they can forestall
Forme en V-ing
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
I can have forestalled you can have forestalled he can have forestalled we can have forestalled you can have forestalled they can have forestalled
Perfect en V-ing
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
Négation
Forme simple
I cannot forestall you cannot forestall he cannot forestall we cannot forestall you cannot forestall they cannot forestall
Forme en V-ing
I cannot be forestalling you cannot be forestalling he cannot be forestalling we cannot be forestalling you cannot be forestalling they cannot be forestalling
Perfect
I cannot have forestalled you cannot have forestalled he cannot have forestalled we cannot have forestalled you cannot have forestalled they cannot have forestalled
Perfect en V-ing
I cannot have been forestalling you cannot have been forestalling he cannot have been forestalling we cannot have been forestalling you cannot have been forestalling they cannot have been forestalling
Forme interrogative
Forme simple
can I forestall? can you forestall? can he forestall? can we forestall? can you forestall? can they forestall?
Forme en V-ing
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
can I have forestalled? can you have forestalled? can he have forestalled? can we have forestalled? can you have forestalled? can they have forestalled?
Perfect en V-ing
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?
Forme interro-négative
Forme simple
can I not forestall? can you not forestall? can he not forestall? can we not forestall? can you not forestall? can they not forestall?
Forme en V-ing
can I not be forestalling? can you not be forestalling? can he not be forestalling? can we not be forestalling? can you not be forestalling? can they not be forestalling?
Perfect
can I not have forestalled? can you not have forestalled? can he not have forestalled? can we not have forestalled? can you not have forestalled? can they not have forestalled?
Perfect en V-ing
can I not have been forestalling? can you not have been forestalling? can he not have been forestalling? can we not have been forestalling? can you not have been forestalling? can they not have been forestalling?