could twig
Regular verb: twig - twigged- twigged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could twig
you could twig
she could twig
we could twig
you could twig
they could twig 	I could be twigging
you could be twigging
she could be twigging
we could be twigging
you could be twigging
they could be twigging	I could have twigged
you could have twigged
she could have twigged
we could have twigged
you could have twigged
they could have twigged	I could have been twigging
you could have been twigging
she could have been twigging
we could have been twigging
you could have been twigging
they could have been twigging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't twig
you couldn't twig
she couldn't twig
we couldn't twig
you couldn't twig
they couldn't twig 	I couldn't be twigging
you couldn't be twigging
she couldn't be twigging
we couldn't be twigging
you couldn't be twigging
they couldn't be twigging	I couldn't have twigged
you couldn't have twigged
she couldn't have twigged
we couldn't have twigged
you couldn't have twigged
they couldn't have twigged	I couldn't have been twigging
you couldn't have been twigging
she couldn't have been twigging
we couldn't have been twigging
you couldn't have been twigging
they couldn't have been twigging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I twig?
could you twig?
could she twig?
could we twig?
could you twig?
could they twig? 	could I be twigging?
could you be twigging?
could she be twigging?
could we be twigging?
could you be twigging?
could they be twigging? 	could I have twigged?
could you have twigged?
could she have twigged?
could we have twigged?
could you have twigged?
could they have twigged? 	could I have been twigging?
could you have been twigging?
could she have been twigging?
could we have been twigging?
could you have been twigging?
could they have been twigging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I twig?
couldn't you twig?
couldn't she twig?
couldn't we twig?
couldn't you twig?
couldn't they twig? 	couldn't I be twigging?
couldn't you be twigging?
couldn't she be twigging?
couldn't we be twigging?
couldn't you be twigging?
couldn't they be twigging? 	couldn't I have twigged?
couldn't you have twigged?
couldn't she have twigged?
couldn't we have twigged?
couldn't you have twigged?
couldn't they have twigged? 	couldn't I have been twigging?
couldn't you have been twigging?
couldn't she have been twigging?
couldn't we have been twigging?
couldn't you have been twigging?
couldn't they have been twigging?