can reply
Regular verb: reply - replied- replied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can reply
you can reply
she can reply
we can reply
you can reply
they can reply 	I can be replying
you can be replying
she can be replying
we can be replying
you can be replying
they can be replying	I can have replied
you can have replied
she can have replied
we can have replied
you can have replied
they can have replied	I can have been replying
you can have been replying
she can have been replying
we can have been replying
you can have been replying
they can have been replying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot reply
you cannot reply
she cannot reply
we cannot reply
you cannot reply
they cannot reply 	I cannot be replying
you cannot be replying
she cannot be replying
we cannot be replying
you cannot be replying
they cannot be replying	I cannot have replied
you cannot have replied
she cannot have replied
we cannot have replied
you cannot have replied
they cannot have replied	I cannot have been replying
you cannot have been replying
she cannot have been replying
we cannot have been replying
you cannot have been replying
they cannot have been replying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I reply?
can you reply?
can she reply?
can we reply?
can you reply?
can they reply? 	can I be replying?
can you be replying?
can she be replying?
can we be replying?
can you be replying?
can they be replying? 	can I have replied?
can you have replied?
can she have replied?
can we have replied?
can you have replied?
can they have replied? 	can I have been replying?
can you have been replying?
can she have been replying?
can we have been replying?
can you have been replying?
can they have been replying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not reply?
can you not reply?
can she not reply?
can we not reply?
can you not reply?
can they not reply? 	can I not be replying?
can you not be replying?
can she not be replying?
can we not be replying?
can you not be replying?
can they not be replying? 	can I not have replied?
can you not have replied?
can she not have replied?
can we not have replied?
can you not have replied?
can they not have replied? 	can I not have been replying?
can you not have been replying?
can she not have been replying?
can we not have been replying?
can you not have been replying?
can they not have been replying?