can disserve
Regular verb: disserve - disserved- disserved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can disserve
you can disserve
he can disserve
we can disserve
you can disserve
they can disserve 	I can be disserving
you can be disserving
he can be disserving
we can be disserving
you can be disserving
they can be disserving	I can have disserved
you can have disserved
he can have disserved
we can have disserved
you can have disserved
they can have disserved	I can have been disserving
you can have been disserving
he can have been disserving
we can have been disserving
you can have been disserving
they can have been disserving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't disserve
you can't disserve
he can't disserve
we can't disserve
you can't disserve
they can't disserve 	I can't be disserving
you can't be disserving
he can't be disserving
we can't be disserving
you can't be disserving
they can't be disserving	I can't have disserved
you can't have disserved
he can't have disserved
we can't have disserved
you can't have disserved
they can't have disserved	I can't have been disserving
you can't have been disserving
he can't have been disserving
we can't have been disserving
you can't have been disserving
they can't have been disserving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I disserve?
can you disserve?
can he disserve?
can we disserve?
can you disserve?
can they disserve? 	can I be disserving?
can you be disserving?
can he be disserving?
can we be disserving?
can you be disserving?
can they be disserving? 	can I have disserved?
can you have disserved?
can he have disserved?
can we have disserved?
can you have disserved?
can they have disserved? 	can I have been disserving?
can you have been disserving?
can he have been disserving?
can we have been disserving?
can you have been disserving?
can they have been disserving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I disserve?
can't you disserve?
can't he disserve?
can't we disserve?
can't you disserve?
can't they disserve? 	can't I be disserving?
can't you be disserving?
can't he be disserving?
can't we be disserving?
can't you be disserving?
can't they be disserving? 	can't I have disserved?
can't you have disserved?
can't he have disserved?
can't we have disserved?
can't you have disserved?
can't they have disserved? 	can't I have been disserving?
can't you have been disserving?
can't he have been disserving?
can't we have been disserving?
can't you have been disserving?
can't they have been disserving?