I can pitapat you can pitapat she can pitapat we can pitapat you can pitapat they can pitapat
V-ing form
I can be pitapating you can be pitapating she can be pitapating we can be pitapating you can be pitapating they can be pitapating
Perfect
I can have pitapated you can have pitapated she 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 she can have been pitapating we can have been pitapating you can have been pitapating they can have been pitapating
Negation
Simple form
I cannot pitapat you cannot pitapat she cannot pitapat we cannot pitapat you cannot pitapat they cannot pitapat
V-ing form
I cannot be pitapating you cannot be pitapating she cannot be pitapating we cannot be pitapating you cannot be pitapating they cannot be pitapating
Perfect
I cannot have pitapated you cannot have pitapated she cannot have pitapated we cannot have pitapated you cannot have pitapated they cannot have pitapated
V-ing perfect
I cannot have been pitapating you cannot have been pitapating she cannot have been pitapating we cannot have been pitapating you cannot have been pitapating they cannot have been pitapating
Interrogative form
Simple form
can I pitapat? can you pitapat? can she pitapat? can we pitapat? can you pitapat? can they pitapat?
V-ing form
can I be pitapating? can you be pitapating? can she be pitapating? can we be pitapating? can you be pitapating? can they be pitapating?
Perfect
can I have pitapated? can you have pitapated? can she 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 she have been pitapating? can we have been pitapating? can you have been pitapating? can they have been pitapating?
Interro-negative form
Simple form
can I not pitapat? can you not pitapat? can she not pitapat? can we not pitapat? can you not pitapat? can they not pitapat?
V-ing form
can I not be pitapating? can you not be pitapating? can she not be pitapating? can we not be pitapating? can you not be pitapating? can they not be pitapating?
Perfect
can I not have pitapated? can you not have pitapated? can she not have pitapated? can we not have pitapated? can you not have pitapated? can they not have pitapated?
V-ing perfect
can I not have been pitapating? can you not have been pitapating? can she not have been pitapating? can we not have been pitapating? can you not have been pitapating? can they not have been pitapating?