could deworm
Regular verb: deworm - dewormed- dewormed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could deworm
you could deworm
she could deworm
we could deworm
you could deworm
they could deworm 	I could be deworming
you could be deworming
she could be deworming
we could be deworming
you could be deworming
they could be deworming	I could have dewormed
you could have dewormed
she could have dewormed
we could have dewormed
you could have dewormed
they could have dewormed	I could have been deworming
you could have been deworming
she could have been deworming
we could have been deworming
you could have been deworming
they could have been deworming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't deworm
you couldn't deworm
she couldn't deworm
we couldn't deworm
you couldn't deworm
they couldn't deworm 	I couldn't be deworming
you couldn't be deworming
she couldn't be deworming
we couldn't be deworming
you couldn't be deworming
they couldn't be deworming	I couldn't have dewormed
you couldn't have dewormed
she couldn't have dewormed
we couldn't have dewormed
you couldn't have dewormed
they couldn't have dewormed	I couldn't have been deworming
you couldn't have been deworming
she couldn't have been deworming
we couldn't have been deworming
you couldn't have been deworming
they couldn't have been deworming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I deworm?
could you deworm?
could she deworm?
could we deworm?
could you deworm?
could they deworm? 	could I be deworming?
could you be deworming?
could she be deworming?
could we be deworming?
could you be deworming?
could they be deworming? 	could I have dewormed?
could you have dewormed?
could she have dewormed?
could we have dewormed?
could you have dewormed?
could they have dewormed? 	could I have been deworming?
could you have been deworming?
could she have been deworming?
could we have been deworming?
could you have been deworming?
could they have been deworming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I deworm?
couldn't you deworm?
couldn't she deworm?
couldn't we deworm?
couldn't you deworm?
couldn't they deworm? 	couldn't I be deworming?
couldn't you be deworming?
couldn't she be deworming?
couldn't we be deworming?
couldn't you be deworming?
couldn't they be deworming? 	couldn't I have dewormed?
couldn't you have dewormed?
couldn't she have dewormed?
couldn't we have dewormed?
couldn't you have dewormed?
couldn't they have dewormed? 	couldn't I have been deworming?
couldn't you have been deworming?
couldn't she have been deworming?
couldn't we have been deworming?
couldn't you have been deworming?
couldn't they have been deworming?