could size
Regular verb: size - sized- sized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could size
you could size
she could size
we could size
you could size
they could size 	I could be sizing
you could be sizing
she could be sizing
we could be sizing
you could be sizing
they could be sizing	I could have sized
you could have sized
she could have sized
we could have sized
you could have sized
they could have sized	I could have been sizing
you could have been sizing
she could have been sizing
we could have been sizing
you could have been sizing
they could have been sizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not size
you could not size
she could not size
we could not size
you could not size
they could not size 	I could not be sizing
you could not be sizing
she could not be sizing
we could not be sizing
you could not be sizing
they could not be sizing	I could not have sized
you could not have sized
she could not have sized
we could not have sized
you could not have sized
they could not have sized	I could not have been sizing
you could not have been sizing
she could not have been sizing
we could not have been sizing
you could not have been sizing
they could not have been sizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I size?
could you size?
could she size?
could we size?
could you size?
could they size? 	could I be sizing?
could you be sizing?
could she be sizing?
could we be sizing?
could you be sizing?
could they be sizing? 	could I have sized?
could you have sized?
could she have sized?
could we have sized?
could you have sized?
could they have sized? 	could I have been sizing?
could you have been sizing?
could she have been sizing?
could we have been sizing?
could you have been sizing?
could they have been sizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not size?
could you not size?
could she not size?
could we not size?
could you not size?
could they not size? 	could I not be sizing?
could you not be sizing?
could she not be sizing?
could we not be sizing?
could you not be sizing?
could they not be sizing? 	could I not have sized?
could you not have sized?
could she not have sized?
could we not have sized?
could you not have sized?
could they not have sized? 	could I not have been sizing?
could you not have been sizing?
could she not have been sizing?
could we not have been sizing?
could you not have been sizing?
could they not have been sizing?