can degenerate
Regular verb: degenerate - degenerated- degenerated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can degenerate
you can degenerate
he can degenerate
we can degenerate
you can degenerate
they can degenerate 	I can be degenerating
you can be degenerating
he can be degenerating
we can be degenerating
you can be degenerating
they can be degenerating	I can have degenerated
you can have degenerated
he can have degenerated
we can have degenerated
you can have degenerated
they can have degenerated	I can have been degenerating
you can have been degenerating
he can have been degenerating
we can have been degenerating
you can have been degenerating
they can have been degenerating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't degenerate
you can't degenerate
he can't degenerate
we can't degenerate
you can't degenerate
they can't degenerate 	I can't be degenerating
you can't be degenerating
he can't be degenerating
we can't be degenerating
you can't be degenerating
they can't be degenerating	I can't have degenerated
you can't have degenerated
he can't have degenerated
we can't have degenerated
you can't have degenerated
they can't have degenerated	I can't have been degenerating
you can't have been degenerating
he can't have been degenerating
we can't have been degenerating
you can't have been degenerating
they can't have been degenerating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I degenerate?
can you degenerate?
can he degenerate?
can we degenerate?
can you degenerate?
can they degenerate? 	can I be degenerating?
can you be degenerating?
can he be degenerating?
can we be degenerating?
can you be degenerating?
can they be degenerating? 	can I have degenerated?
can you have degenerated?
can he have degenerated?
can we have degenerated?
can you have degenerated?
can they have degenerated? 	can I have been degenerating?
can you have been degenerating?
can he have been degenerating?
can we have been degenerating?
can you have been degenerating?
can they have been degenerating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I degenerate?
can't you degenerate?
can't he degenerate?
can't we degenerate?
can't you degenerate?
can't they degenerate? 	can't I be degenerating?
can't you be degenerating?
can't he be degenerating?
can't we be degenerating?
can't you be degenerating?
can't they be degenerating? 	can't I have degenerated?
can't you have degenerated?
can't he have degenerated?
can't we have degenerated?
can't you have degenerated?
can't they have degenerated? 	can't I have been degenerating?
can't you have been degenerating?
can't he have been degenerating?
can't we have been degenerating?
can't you have been degenerating?
can't they have been degenerating?