I can dirty you can dirty she can dirty we can dirty you can dirty they can dirty
V-ing form
I can be dirtying you can be dirtying she can be dirtying we can be dirtying you can be dirtying they can be dirtying
Perfect
I can have dirtied you can have dirtied she can have dirtied we can have dirtied you can have dirtied they can have dirtied
V-ing perfect
I can have been dirtying you can have been dirtying she can have been dirtying we can have been dirtying you can have been dirtying they can have been dirtying
Negation
Simple form
I can't dirty you can't dirty she can't dirty we can't dirty you can't dirty they can't dirty
V-ing form
I can't be dirtying you can't be dirtying she can't be dirtying we can't be dirtying you can't be dirtying they can't be dirtying
Perfect
I can't have dirtied you can't have dirtied she can't have dirtied we can't have dirtied you can't have dirtied they can't have dirtied
V-ing perfect
I can't have been dirtying you can't have been dirtying she can't have been dirtying we can't have been dirtying you can't have been dirtying they can't have been dirtying
Interrogative form
Simple form
can I dirty? can you dirty? can she dirty? can we dirty? can you dirty? can they dirty?
V-ing form
can I be dirtying? can you be dirtying? can she be dirtying? can we be dirtying? can you be dirtying? can they be dirtying?
Perfect
can I have dirtied? can you have dirtied? can she have dirtied? can we have dirtied? can you have dirtied? can they have dirtied?
V-ing perfect
can I have been dirtying? can you have been dirtying? can she have been dirtying? can we have been dirtying? can you have been dirtying? can they have been dirtying?
Interro-negative form
Simple form
can't I dirty? can't you dirty? can't she dirty? can't we dirty? can't you dirty? can't they dirty?
V-ing form
can't I be dirtying? can't you be dirtying? can't she be dirtying? can't we be dirtying? can't you be dirtying? can't they be dirtying?
Perfect
can't I have dirtied? can't you have dirtied? can't she have dirtied? can't we have dirtied? can't you have dirtied? can't they have dirtied?
V-ing perfect
can't I have been dirtying? can't you have been dirtying? can't she have been dirtying? can't we have been dirtying? can't you have been dirtying? can't they have been dirtying?