English verb conjugation
CAN COMPETE

Regular verb: compete - competed - competed

Affirmation

Simple form	V-ing form
I can compete you can compete he can compete we can compete you can compete they can compete	I can be competing you can be competing he can be competing we can be competing you can be competing they can be competing
Perfect	V-ing perfect
I can have competed you can have competed he can have competed we can have competed you can have competed they can have competed	I can have been competing you can have been competing he can have been competing we can have been competing you can have been competing they can have been competing

Negation

Simple form	V-ing form
I cannot compete you cannot compete he cannot compete we cannot compete you cannot compete they cannot compete	I cannot be competing you cannot be competing he cannot be competing we cannot be competing you cannot be competing they cannot be competing
Perfect	V-ing perfect
I cannot have competed you cannot have competed he cannot have competed we cannot have competed you cannot have competed they cannot have competed	I cannot have been competing you cannot have been competing he cannot have been competing we cannot have been competing you cannot have been competing they cannot have been competing

Interrogative form

Simple form	V-ing form
can I compete? can you compete? can he compete? can we compete? can you compete? can they compete?	can I be competing? can you be competing? can he be competing? can we be competing? can you be competing? can they be competing?
Perfect	V-ing perfect
can I have competed? can you have competed? can he have competed? can we have competed? can you have competed? can they have competed?	can I have been competing? can you have been competing? can he have been competing? can we have been competing? can you have been competing? can they have been competing?

Interro-negative form

Simple form	V-ing form
can I not compete? can you not compete? can he not compete? can we not compete? can you not compete? can they not compete?	can I not be competing? can you not be competing? can he not be competing? can we not be competing? can you not be competing? can they not be competing?
Perfect	V-ing perfect
can I not have competed? can you not have competed? can he not have competed? can we not have competed? can you not have competed? can they not have competed?	can I not have been competing? can you not have been competing? can he not have been competing? can we not have been competing? can you not have been competing? can they not have been competing?