can mate
Regular verb: mate - mated- mated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can mate
you can mate
he can mate
we can mate
you can mate
they can mate 	I can be mating
you can be mating
he can be mating
we can be mating
you can be mating
they can be mating	I can have mated
you can have mated
he can have mated
we can have mated
you can have mated
they can have mated	I can have been mating
you can have been mating
he can have been mating
we can have been mating
you can have been mating
they can have been mating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot mate
you cannot mate
he cannot mate
we cannot mate
you cannot mate
they cannot mate 	I cannot be mating
you cannot be mating
he cannot be mating
we cannot be mating
you cannot be mating
they cannot be mating	I cannot have mated
you cannot have mated
he cannot have mated
we cannot have mated
you cannot have mated
they cannot have mated	I cannot have been mating
you cannot have been mating
he cannot have been mating
we cannot have been mating
you cannot have been mating
they cannot have been mating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I mate?
can you mate?
can he mate?
can we mate?
can you mate?
can they mate? 	can I be mating?
can you be mating?
can he be mating?
can we be mating?
can you be mating?
can they be mating? 	can I have mated?
can you have mated?
can he have mated?
can we have mated?
can you have mated?
can they have mated? 	can I have been mating?
can you have been mating?
can he have been mating?
can we have been mating?
can you have been mating?
can they have been mating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not mate?
can you not mate?
can he not mate?
can we not mate?
can you not mate?
can they not mate? 	can I not be mating?
can you not be mating?
can he not be mating?
can we not be mating?
can you not be mating?
can they not be mating? 	can I not have mated?
can you not have mated?
can he not have mated?
can we not have mated?
can you not have mated?
can they not have mated? 	can I not have been mating?
can you not have been mating?
can he not have been mating?
can we not have been mating?
can you not have been mating?
can they not have been mating?