can discard
Regular verb: discard - discarded- discarded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can discard
you can discard
she can discard
we can discard
you can discard
they can discard 	I can be discarding
you can be discarding
she can be discarding
we can be discarding
you can be discarding
they can be discarding	I can have discarded
you can have discarded
she can have discarded
we can have discarded
you can have discarded
they can have discarded	I can have been discarding
you can have been discarding
she can have been discarding
we can have been discarding
you can have been discarding
they can have been discarding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot discard
you cannot discard
she cannot discard
we cannot discard
you cannot discard
they cannot discard 	I cannot be discarding
you cannot be discarding
she cannot be discarding
we cannot be discarding
you cannot be discarding
they cannot be discarding	I cannot have discarded
you cannot have discarded
she cannot have discarded
we cannot have discarded
you cannot have discarded
they cannot have discarded	I cannot have been discarding
you cannot have been discarding
she cannot have been discarding
we cannot have been discarding
you cannot have been discarding
they cannot have been discarding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I discard?
can you discard?
can she discard?
can we discard?
can you discard?
can they discard? 	can I be discarding?
can you be discarding?
can she be discarding?
can we be discarding?
can you be discarding?
can they be discarding? 	can I have discarded?
can you have discarded?
can she have discarded?
can we have discarded?
can you have discarded?
can they have discarded? 	can I have been discarding?
can you have been discarding?
can she have been discarding?
can we have been discarding?
can you have been discarding?
can they have been discarding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not discard?
can you not discard?
can she not discard?
can we not discard?
can you not discard?
can they not discard? 	can I not be discarding?
can you not be discarding?
can she not be discarding?
can we not be discarding?
can you not be discarding?
can they not be discarding? 	can I not have discarded?
can you not have discarded?
can she not have discarded?
can we not have discarded?
can you not have discarded?
can they not have discarded? 	can I not have been discarding?
can you not have been discarding?
can she not have been discarding?
can we not have been discarding?
can you not have been discarding?
can they not have been discarding?