I can faint you can faint he can faint we can faint you can faint they can faint
V-ing form
I can be fainting you can be fainting he can be fainting we can be fainting you can be fainting they can be fainting
Perfect
I can have fainted you can have fainted he can have fainted we can have fainted you can have fainted they can have fainted
V-ing perfect
I can have been fainting you can have been fainting he can have been fainting we can have been fainting you can have been fainting they can have been fainting
Negation
Simple form
I cannot faint you cannot faint he cannot faint we cannot faint you cannot faint they cannot faint
V-ing form
I cannot be fainting you cannot be fainting he cannot be fainting we cannot be fainting you cannot be fainting they cannot be fainting
Perfect
I cannot have fainted you cannot have fainted he cannot have fainted we cannot have fainted you cannot have fainted they cannot have fainted
V-ing perfect
I cannot have been fainting you cannot have been fainting he cannot have been fainting we cannot have been fainting you cannot have been fainting they cannot have been fainting
Interrogative form
Simple form
can I faint? can you faint? can he faint? can we faint? can you faint? can they faint?
V-ing form
can I be fainting? can you be fainting? can he be fainting? can we be fainting? can you be fainting? can they be fainting?
Perfect
can I have fainted? can you have fainted? can he have fainted? can we have fainted? can you have fainted? can they have fainted?
V-ing perfect
can I have been fainting? can you have been fainting? can he have been fainting? can we have been fainting? can you have been fainting? can they have been fainting?
Interro-negative form
Simple form
can I not faint? can you not faint? can he not faint? can we not faint? can you not faint? can they not faint?
V-ing form
can I not be fainting? can you not be fainting? can he not be fainting? can we not be fainting? can you not be fainting? can they not be fainting?
Perfect
can I not have fainted? can you not have fainted? can he not have fainted? can we not have fainted? can you not have fainted? can they not have fainted?
V-ing perfect
can I not have been fainting? can you not have been fainting? can he not have been fainting? can we not have been fainting? can you not have been fainting? can they not have been fainting?