can defeat
Regular verb: defeat - defeated- defeated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can defeat
you can defeat
he can defeat
we can defeat
you can defeat
they can defeat 	I can be defeating
you can be defeating
he can be defeating
we can be defeating
you can be defeating
they can be defeating	I can have defeated
you can have defeated
he can have defeated
we can have defeated
you can have defeated
they can have defeated	I can have been defeating
you can have been defeating
he can have been defeating
we can have been defeating
you can have been defeating
they can have been defeating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot defeat
you cannot defeat
he cannot defeat
we cannot defeat
you cannot defeat
they cannot defeat 	I cannot be defeating
you cannot be defeating
he cannot be defeating
we cannot be defeating
you cannot be defeating
they cannot be defeating	I cannot have defeated
you cannot have defeated
he cannot have defeated
we cannot have defeated
you cannot have defeated
they cannot have defeated	I cannot have been defeating
you cannot have been defeating
he cannot have been defeating
we cannot have been defeating
you cannot have been defeating
they cannot have been defeating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I defeat?
can you defeat?
can he defeat?
can we defeat?
can you defeat?
can they defeat? 	can I be defeating?
can you be defeating?
can he be defeating?
can we be defeating?
can you be defeating?
can they be defeating? 	can I have defeated?
can you have defeated?
can he have defeated?
can we have defeated?
can you have defeated?
can they have defeated? 	can I have been defeating?
can you have been defeating?
can he have been defeating?
can we have been defeating?
can you have been defeating?
can they have been defeating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not defeat?
can you not defeat?
can he not defeat?
can we not defeat?
can you not defeat?
can they not defeat? 	can I not be defeating?
can you not be defeating?
can he not be defeating?
can we not be defeating?
can you not be defeating?
can they not be defeating? 	can I not have defeated?
can you not have defeated?
can he not have defeated?
can we not have defeated?
can you not have defeated?
can they not have defeated? 	can I not have been defeating?
can you not have been defeating?
can he not have been defeating?
can we not have been defeating?
can you not have been defeating?
can they not have been defeating?