English verb conjugation
CAN QUIZ

Regular verb: quiz - quizzed - quizzed

Affirmation

Simple form	V-ing form
I can quiz you can quiz he can quiz we can quiz you can quiz they can quiz	I can be quizzing you can be quizzing he can be quizzing we can be quizzing you can be quizzing they can be quizzing
Perfect	V-ing perfect
I can have quizzed you can have quizzed he can have quizzed we can have quizzed you can have quizzed they can have quizzed	I can have been quizzing you can have been quizzing he can have been quizzing we can have been quizzing you can have been quizzing they can have been quizzing

Negation

Simple form	V-ing form
I cannot quiz you cannot quiz he cannot quiz we cannot quiz you cannot quiz they cannot quiz	I cannot be quizzing you cannot be quizzing he cannot be quizzing we cannot be quizzing you cannot be quizzing they cannot be quizzing
Perfect	V-ing perfect
I cannot have quizzed you cannot have quizzed he cannot have quizzed we cannot have quizzed you cannot have quizzed they cannot have quizzed	I cannot have been quizzing you cannot have been quizzing he cannot have been quizzing we cannot have been quizzing you cannot have been quizzing they cannot have been quizzing

Interrogative form

Simple form	V-ing form
can I quiz? can you quiz? can he quiz? can we quiz? can you quiz? can they quiz?	can I be quizzing? can you be quizzing? can he be quizzing? can we be quizzing? can you be quizzing? can they be quizzing?
Perfect	V-ing perfect
can I have quizzed? can you have quizzed? can he have quizzed? can we have quizzed? can you have quizzed? can they have quizzed?	can I have been quizzing? can you have been quizzing? can he have been quizzing? can we have been quizzing? can you have been quizzing? can they have been quizzing?

Interro-negative form

Simple form	V-ing form
can I not quiz? can you not quiz? can he not quiz? can we not quiz? can you not quiz? can they not quiz?	can I not be quizzing? can you not be quizzing? can he not be quizzing? can we not be quizzing? can you not be quizzing? can they not be quizzing?
Perfect	V-ing perfect
can I not have quizzed? can you not have quizzed? can he not have quizzed? can we not have quizzed? can you not have quizzed? can they not have quizzed?	can I not have been quizzing? can you not have been quizzing? can he not have been quizzing? can we not have been quizzing? can you not have been quizzing? can they not have been quizzing?