I can pitapat you can pitapat he can pitapat we can pitapat you can pitapat they can pitapat
V-ing form
I can be pitapating you can be pitapating he can be pitapating we can be pitapating you can be pitapating they can be pitapating
Perfect
I can have pitapated you can have pitapated he can have pitapated we can have pitapated you can have pitapated they can have pitapated
V-ing perfect
I can have been pitapating you can have been pitapating he can have been pitapating we can have been pitapating you can have been pitapating they can have been pitapating
Negation
Simple form
I can't pitapat you can't pitapat he can't pitapat we can't pitapat you can't pitapat they can't pitapat
V-ing form
I can't be pitapating you can't be pitapating he can't be pitapating we can't be pitapating you can't be pitapating they can't be pitapating
Perfect
I can't have pitapated you can't have pitapated he can't have pitapated we can't have pitapated you can't have pitapated they can't have pitapated
V-ing perfect
I can't have been pitapating you can't have been pitapating he can't have been pitapating we can't have been pitapating you can't have been pitapating they can't have been pitapating
Interrogative form
Simple form
can I pitapat? can you pitapat? can he pitapat? can we pitapat? can you pitapat? can they pitapat?
V-ing form
can I be pitapating? can you be pitapating? can he be pitapating? can we be pitapating? can you be pitapating? can they be pitapating?
Perfect
can I have pitapated? can you have pitapated? can he have pitapated? can we have pitapated? can you have pitapated? can they have pitapated?
V-ing perfect
can I have been pitapating? can you have been pitapating? can he have been pitapating? can we have been pitapating? can you have been pitapating? can they have been pitapating?
Interro-negative form
Simple form
can't I pitapat? can't you pitapat? can't he pitapat? can't we pitapat? can't you pitapat? can't they pitapat?
V-ing form
can't I be pitapating? can't you be pitapating? can't he be pitapating? can't we be pitapating? can't you be pitapating? can't they be pitapating?
Perfect
can't I have pitapated? can't you have pitapated? can't he have pitapated? can't we have pitapated? can't you have pitapated? can't they have pitapated?
V-ing perfect
can't I have been pitapating? can't you have been pitapating? can't he have been pitapating? can't we have been pitapating? can't you have been pitapating? can't they have been pitapating?