could remainder
Regular verb: remainder - remaindered- remaindered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could remainder
you could remainder
she could remainder
we could remainder
you could remainder
they could remainder 	I could be remaindering
you could be remaindering
she could be remaindering
we could be remaindering
you could be remaindering
they could be remaindering	I could have remaindered
you could have remaindered
she could have remaindered
we could have remaindered
you could have remaindered
they could have remaindered	I could have been remaindering
you could have been remaindering
she could have been remaindering
we could have been remaindering
you could have been remaindering
they could have been remaindering	

Negation 	
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I couldn't remainder
you couldn't remainder
she couldn't remainder
we couldn't remainder
you couldn't remainder
they couldn't remainder 	I couldn't be remaindering
you couldn't be remaindering
she couldn't be remaindering
we couldn't be remaindering
you couldn't be remaindering
they couldn't be remaindering	I couldn't have remaindered
you couldn't have remaindered
she couldn't have remaindered
we couldn't have remaindered
you couldn't have remaindered
they couldn't have remaindered	I couldn't have been remaindering
you couldn't have been remaindering
she couldn't have been remaindering
we couldn't have been remaindering
you couldn't have been remaindering
they couldn't have been remaindering	

Interrogative form 	
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could I remainder?
could you remainder?
could she remainder?
could we remainder?
could you remainder?
could they remainder? 	could I be remaindering?
could you be remaindering?
could she be remaindering?
could we be remaindering?
could you be remaindering?
could they be remaindering? 	could I have remaindered?
could you have remaindered?
could she have remaindered?
could we have remaindered?
could you have remaindered?
could they have remaindered? 	could I have been remaindering?
could you have been remaindering?
could she have been remaindering?
could we have been remaindering?
could you have been remaindering?
could they have been remaindering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I remainder?
couldn't you remainder?
couldn't she remainder?
couldn't we remainder?
couldn't you remainder?
couldn't they remainder? 	couldn't I be remaindering?
couldn't you be remaindering?
couldn't she be remaindering?
couldn't we be remaindering?
couldn't you be remaindering?
couldn't they be remaindering? 	couldn't I have remaindered?
couldn't you have remaindered?
couldn't she have remaindered?
couldn't we have remaindered?
couldn't you have remaindered?
couldn't they have remaindered? 	couldn't I have been remaindering?
couldn't you have been remaindering?
couldn't she have been remaindering?
couldn't we have been remaindering?
couldn't you have been remaindering?
couldn't they have been remaindering?