I can clean you can clean he can clean we can clean you can clean they can clean
V-ing form
I can be cleaning you can be cleaning he can be cleaning we can be cleaning you can be cleaning they can be cleaning
Perfect
I can have cleaned you can have cleaned he can have cleaned we can have cleaned you can have cleaned they can have cleaned
V-ing perfect
I can have been cleaning you can have been cleaning he can have been cleaning we can have been cleaning you can have been cleaning they can have been cleaning
Negation
Simple form
I can't clean you can't clean he can't clean we can't clean you can't clean they can't clean
V-ing form
I can't be cleaning you can't be cleaning he can't be cleaning we can't be cleaning you can't be cleaning they can't be cleaning
Perfect
I can't have cleaned you can't have cleaned he can't have cleaned we can't have cleaned you can't have cleaned they can't have cleaned
V-ing perfect
I can't have been cleaning you can't have been cleaning he can't have been cleaning we can't have been cleaning you can't have been cleaning they can't have been cleaning
Interrogative form
Simple form
can I clean? can you clean? can he clean? can we clean? can you clean? can they clean?
V-ing form
can I be cleaning? can you be cleaning? can he be cleaning? can we be cleaning? can you be cleaning? can they be cleaning?
Perfect
can I have cleaned? can you have cleaned? can he have cleaned? can we have cleaned? can you have cleaned? can they have cleaned?
V-ing perfect
can I have been cleaning? can you have been cleaning? can he have been cleaning? can we have been cleaning? can you have been cleaning? can they have been cleaning?
Interro-negative form
Simple form
can't I clean? can't you clean? can't he clean? can't we clean? can't you clean? can't they clean?
V-ing form
can't I be cleaning? can't you be cleaning? can't he be cleaning? can't we be cleaning? can't you be cleaning? can't they be cleaning?
Perfect
can't I have cleaned? can't you have cleaned? can't he have cleaned? can't we have cleaned? can't you have cleaned? can't they have cleaned?
V-ing perfect
can't I have been cleaning? can't you have been cleaning? can't he have been cleaning? can't we have been cleaning? can't you have been cleaning? can't they have been cleaning?