can perform
Regular verb: perform - performed- performed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can perform
you can perform
he can perform
we can perform
you can perform
they can perform 	I can be performing
you can be performing
he can be performing
we can be performing
you can be performing
they can be performing	I can have performed
you can have performed
he can have performed
we can have performed
you can have performed
they can have performed	I can have been performing
you can have been performing
he can have been performing
we can have been performing
you can have been performing
they can have been performing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't perform
you can't perform
he can't perform
we can't perform
you can't perform
they can't perform 	I can't be performing
you can't be performing
he can't be performing
we can't be performing
you can't be performing
they can't be performing	I can't have performed
you can't have performed
he can't have performed
we can't have performed
you can't have performed
they can't have performed	I can't have been performing
you can't have been performing
he can't have been performing
we can't have been performing
you can't have been performing
they can't have been performing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I perform?
can you perform?
can he perform?
can we perform?
can you perform?
can they perform? 	can I be performing?
can you be performing?
can he be performing?
can we be performing?
can you be performing?
can they be performing? 	can I have performed?
can you have performed?
can he have performed?
can we have performed?
can you have performed?
can they have performed? 	can I have been performing?
can you have been performing?
can he have been performing?
can we have been performing?
can you have been performing?
can they have been performing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I perform?
can't you perform?
can't he perform?
can't we perform?
can't you perform?
can't they perform? 	can't I be performing?
can't you be performing?
can't he be performing?
can't we be performing?
can't you be performing?
can't they be performing? 	can't I have performed?
can't you have performed?
can't he have performed?
can't we have performed?
can't you have performed?
can't they have performed? 	can't I have been performing?
can't you have been performing?
can't he have been performing?
can't we have been performing?
can't you have been performing?
can't they have been performing?