could evaginate
Regular verb: evaginate - evaginated- evaginated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could evaginate
you could evaginate
he could evaginate
we could evaginate
you could evaginate
they could evaginate 	I could be evaginating
you could be evaginating
he could be evaginating
we could be evaginating
you could be evaginating
they could be evaginating	I could have evaginated
you could have evaginated
he could have evaginated
we could have evaginated
you could have evaginated
they could have evaginated	I could have been evaginating
you could have been evaginating
he could have been evaginating
we could have been evaginating
you could have been evaginating
they could have been evaginating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't evaginate
you couldn't evaginate
he couldn't evaginate
we couldn't evaginate
you couldn't evaginate
they couldn't evaginate 	I couldn't be evaginating
you couldn't be evaginating
he couldn't be evaginating
we couldn't be evaginating
you couldn't be evaginating
they couldn't be evaginating	I couldn't have evaginated
you couldn't have evaginated
he couldn't have evaginated
we couldn't have evaginated
you couldn't have evaginated
they couldn't have evaginated	I couldn't have been evaginating
you couldn't have been evaginating
he couldn't have been evaginating
we couldn't have been evaginating
you couldn't have been evaginating
they couldn't have been evaginating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I evaginate?
could you evaginate?
could he evaginate?
could we evaginate?
could you evaginate?
could they evaginate? 	could I be evaginating?
could you be evaginating?
could he be evaginating?
could we be evaginating?
could you be evaginating?
could they be evaginating? 	could I have evaginated?
could you have evaginated?
could he have evaginated?
could we have evaginated?
could you have evaginated?
could they have evaginated? 	could I have been evaginating?
could you have been evaginating?
could he have been evaginating?
could we have been evaginating?
could you have been evaginating?
could they have been evaginating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I evaginate?
couldn't you evaginate?
couldn't he evaginate?
couldn't we evaginate?
couldn't you evaginate?
couldn't they evaginate? 	couldn't I be evaginating?
couldn't you be evaginating?
couldn't he be evaginating?
couldn't we be evaginating?
couldn't you be evaginating?
couldn't they be evaginating? 	couldn't I have evaginated?
couldn't you have evaginated?
couldn't he have evaginated?
couldn't we have evaginated?
couldn't you have evaginated?
couldn't they have evaginated? 	couldn't I have been evaginating?
couldn't you have been evaginating?
couldn't he have been evaginating?
couldn't we have been evaginating?
couldn't you have been evaginating?
couldn't they have been evaginating?