can discolor
Regular verb: discolor - discolored- discolored

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can discolor
you can discolor
she can discolor
we can discolor
you can discolor
they can discolor 	I can be discoloring
you can be discoloring
she can be discoloring
we can be discoloring
you can be discoloring
they can be discoloring	I can have discolored
you can have discolored
she can have discolored
we can have discolored
you can have discolored
they can have discolored	I can have been discoloring
you can have been discoloring
she can have been discoloring
we can have been discoloring
you can have been discoloring
they can have been discoloring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't discolor
you can't discolor
she can't discolor
we can't discolor
you can't discolor
they can't discolor 	I can't be discoloring
you can't be discoloring
she can't be discoloring
we can't be discoloring
you can't be discoloring
they can't be discoloring	I can't have discolored
you can't have discolored
she can't have discolored
we can't have discolored
you can't have discolored
they can't have discolored	I can't have been discoloring
you can't have been discoloring
she can't have been discoloring
we can't have been discoloring
you can't have been discoloring
they can't have been discoloring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I discolor?
can you discolor?
can she discolor?
can we discolor?
can you discolor?
can they discolor? 	can I be discoloring?
can you be discoloring?
can she be discoloring?
can we be discoloring?
can you be discoloring?
can they be discoloring? 	can I have discolored?
can you have discolored?
can she have discolored?
can we have discolored?
can you have discolored?
can they have discolored? 	can I have been discoloring?
can you have been discoloring?
can she have been discoloring?
can we have been discoloring?
can you have been discoloring?
can they have been discoloring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I discolor?
can't you discolor?
can't she discolor?
can't we discolor?
can't you discolor?
can't they discolor? 	can't I be discoloring?
can't you be discoloring?
can't she be discoloring?
can't we be discoloring?
can't you be discoloring?
can't they be discoloring? 	can't I have discolored?
can't you have discolored?
can't she have discolored?
can't we have discolored?
can't you have discolored?
can't they have discolored? 	can't I have been discoloring?
can't you have been discoloring?
can't she have been discoloring?
can't we have been discoloring?
can't you have been discoloring?
can't they have been discoloring?