could stint
Regular verb: stint - stinted- stinted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could stint
you could stint
she could stint
we could stint
you could stint
they could stint 	I could be stinting
you could be stinting
she could be stinting
we could be stinting
you could be stinting
they could be stinting	I could have stinted
you could have stinted
she could have stinted
we could have stinted
you could have stinted
they could have stinted	I could have been stinting
you could have been stinting
she could have been stinting
we could have been stinting
you could have been stinting
they could have been stinting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not stint
you could not stint
she could not stint
we could not stint
you could not stint
they could not stint 	I could not be stinting
you could not be stinting
she could not be stinting
we could not be stinting
you could not be stinting
they could not be stinting	I could not have stinted
you could not have stinted
she could not have stinted
we could not have stinted
you could not have stinted
they could not have stinted	I could not have been stinting
you could not have been stinting
she could not have been stinting
we could not have been stinting
you could not have been stinting
they could not have been stinting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I stint?
could you stint?
could she stint?
could we stint?
could you stint?
could they stint? 	could I be stinting?
could you be stinting?
could she be stinting?
could we be stinting?
could you be stinting?
could they be stinting? 	could I have stinted?
could you have stinted?
could she have stinted?
could we have stinted?
could you have stinted?
could they have stinted? 	could I have been stinting?
could you have been stinting?
could she have been stinting?
could we have been stinting?
could you have been stinting?
could they have been stinting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not stint?
could you not stint?
could she not stint?
could we not stint?
could you not stint?
could they not stint? 	could I not be stinting?
could you not be stinting?
could she not be stinting?
could we not be stinting?
could you not be stinting?
could they not be stinting? 	could I not have stinted?
could you not have stinted?
could she not have stinted?
could we not have stinted?
could you not have stinted?
could they not have stinted? 	could I not have been stinting?
could you not have been stinting?
could she not have been stinting?
could we not have been stinting?
could you not have been stinting?
could they not have been stinting?