could equal
Regular verb: equal - equalled- equalled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could equal
you could equal
she could equal
we could equal
you could equal
they could equal 	I could be equalling
you could be equalling
she could be equalling
we could be equalling
you could be equalling
they could be equalling	I could have equalled
you could have equalled
she could have equalled
we could have equalled
you could have equalled
they could have equalled	I could have been equalling
you could have been equalling
she could have been equalling
we could have been equalling
you could have been equalling
they could have been equalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't equal
you couldn't equal
she couldn't equal
we couldn't equal
you couldn't equal
they couldn't equal 	I couldn't be equalling
you couldn't be equalling
she couldn't be equalling
we couldn't be equalling
you couldn't be equalling
they couldn't be equalling	I couldn't have equalled
you couldn't have equalled
she couldn't have equalled
we couldn't have equalled
you couldn't have equalled
they couldn't have equalled	I couldn't have been equalling
you couldn't have been equalling
she couldn't have been equalling
we couldn't have been equalling
you couldn't have been equalling
they couldn't have been equalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I equal?
could you equal?
could she equal?
could we equal?
could you equal?
could they equal? 	could I be equalling?
could you be equalling?
could she be equalling?
could we be equalling?
could you be equalling?
could they be equalling? 	could I have equalled?
could you have equalled?
could she have equalled?
could we have equalled?
could you have equalled?
could they have equalled? 	could I have been equalling?
could you have been equalling?
could she have been equalling?
could we have been equalling?
could you have been equalling?
could they have been equalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I equal?
couldn't you equal?
couldn't she equal?
couldn't we equal?
couldn't you equal?
couldn't they equal? 	couldn't I be equalling?
couldn't you be equalling?
couldn't she be equalling?
couldn't we be equalling?
couldn't you be equalling?
couldn't they be equalling? 	couldn't I have equalled?
couldn't you have equalled?
couldn't she have equalled?
couldn't we have equalled?
couldn't you have equalled?
couldn't they have equalled? 	couldn't I have been equalling?
couldn't you have been equalling?
couldn't she have been equalling?
couldn't we have been equalling?
couldn't you have been equalling?
couldn't they have been equalling?