English verb conjugation
CAN TREAT

Regular verb: treat - treated - treated

Affirmation

Simple form	V-ing form
I can treat you can treat she can treat we can treat you can treat they can treat	I can be treating you can be treating she can be treating we can be treating you can be treating they can be treating
Perfect	V-ing perfect
I can have treated you can have treated she can have treated we can have treated you can have treated they can have treated	I can have been treating you can have been treating she can have been treating we can have been treating you can have been treating they can have been treating

Negation

Simple form	V-ing form
I cannot treat you cannot treat she cannot treat we cannot treat you cannot treat they cannot treat	I cannot be treating you cannot be treating she cannot be treating we cannot be treating you cannot be treating they cannot be treating
Perfect	V-ing perfect
I cannot have treated you cannot have treated she cannot have treated we cannot have treated you cannot have treated they cannot have treated	I cannot have been treating you cannot have been treating she cannot have been treating we cannot have been treating you cannot have been treating they cannot have been treating

Interrogative form

Simple form	V-ing form
can I treat? can you treat? can she treat? can we treat? can you treat? can they treat?	can I be treating? can you be treating? can she be treating? can we be treating? can you be treating? can they be treating?
Perfect	V-ing perfect
can I have treated? can you have treated? can she have treated? can we have treated? can you have treated? can they have treated?	can I have been treating? can you have been treating? can she have been treating? can we have been treating? can you have been treating? can they have been treating?

Interro-negative form

Simple form	V-ing form
can I not treat? can you not treat? can she not treat? can we not treat? can you not treat? can they not treat?	can I not be treating? can you not be treating? can she not be treating? can we not be treating? can you not be treating? can they not be treating?
Perfect	V-ing perfect
can I not have treated? can you not have treated? can she not have treated? can we not have treated? can you not have treated? can they not have treated?	can I not have been treating? can you not have been treating? can she not have been treating? can we not have been treating? can you not have been treating? can they not have been treating?