I can cook you can cook he can cook we can cook you can cook they can cook
V-ing form
I can be cooking you can be cooking he can be cooking we can be cooking you can be cooking they can be cooking
Perfect
I can have cooked you can have cooked he can have cooked we can have cooked you can have cooked they can have cooked
V-ing perfect
I can have been cooking you can have been cooking he can have been cooking we can have been cooking you can have been cooking they can have been cooking
Negation
Simple form
I can't cook you can't cook he can't cook we can't cook you can't cook they can't cook
V-ing form
I can't be cooking you can't be cooking he can't be cooking we can't be cooking you can't be cooking they can't be cooking
Perfect
I can't have cooked you can't have cooked he can't have cooked we can't have cooked you can't have cooked they can't have cooked
V-ing perfect
I can't have been cooking you can't have been cooking he can't have been cooking we can't have been cooking you can't have been cooking they can't have been cooking
Interrogative form
Simple form
can I cook? can you cook? can he cook? can we cook? can you cook? can they cook?
V-ing form
can I be cooking? can you be cooking? can he be cooking? can we be cooking? can you be cooking? can they be cooking?
Perfect
can I have cooked? can you have cooked? can he have cooked? can we have cooked? can you have cooked? can they have cooked?
V-ing perfect
can I have been cooking? can you have been cooking? can he have been cooking? can we have been cooking? can you have been cooking? can they have been cooking?
Interro-negative form
Simple form
can't I cook? can't you cook? can't he cook? can't we cook? can't you cook? can't they cook?
V-ing form
can't I be cooking? can't you be cooking? can't he be cooking? can't we be cooking? can't you be cooking? can't they be cooking?
Perfect
can't I have cooked? can't you have cooked? can't he have cooked? can't we have cooked? can't you have cooked? can't they have cooked?
V-ing perfect
can't I have been cooking? can't you have been cooking? can't he have been cooking? can't we have been cooking? can't you have been cooking? can't they have been cooking?