I can ally you can ally he can ally we can ally you can ally they can ally
V-ing form
I can be allying you can be allying he can be allying we can be allying you can be allying they can be allying
Perfect
I can have allied you can have allied he can have allied we can have allied you can have allied they can have allied
V-ing perfect
I can have been allying you can have been allying he can have been allying we can have been allying you can have been allying they can have been allying
Negation
Simple form
I can't ally you can't ally he can't ally we can't ally you can't ally they can't ally
V-ing form
I can't be allying you can't be allying he can't be allying we can't be allying you can't be allying they can't be allying
Perfect
I can't have allied you can't have allied he can't have allied we can't have allied you can't have allied they can't have allied
V-ing perfect
I can't have been allying you can't have been allying he can't have been allying we can't have been allying you can't have been allying they can't have been allying
Interrogative form
Simple form
can I ally? can you ally? can he ally? can we ally? can you ally? can they ally?
V-ing form
can I be allying? can you be allying? can he be allying? can we be allying? can you be allying? can they be allying?
Perfect
can I have allied? can you have allied? can he have allied? can we have allied? can you have allied? can they have allied?
V-ing perfect
can I have been allying? can you have been allying? can he have been allying? can we have been allying? can you have been allying? can they have been allying?
Interro-negative form
Simple form
can't I ally? can't you ally? can't he ally? can't we ally? can't you ally? can't they ally?
V-ing form
can't I be allying? can't you be allying? can't he be allying? can't we be allying? can't you be allying? can't they be allying?
Perfect
can't I have allied? can't you have allied? can't he have allied? can't we have allied? can't you have allied? can't they have allied?
V-ing perfect
can't I have been allying? can't you have been allying? can't he have been allying? can't we have been allying? can't you have been allying? can't they have been allying?