could jawbone
Regular verb: jawbone - jawboned- jawboned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could jawbone
you could jawbone
she could jawbone
we could jawbone
you could jawbone
they could jawbone 	I could be jawboning
you could be jawboning
she could be jawboning
we could be jawboning
you could be jawboning
they could be jawboning	I could have jawboned
you could have jawboned
she could have jawboned
we could have jawboned
you could have jawboned
they could have jawboned	I could have been jawboning
you could have been jawboning
she could have been jawboning
we could have been jawboning
you could have been jawboning
they could have been jawboning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't jawbone
you couldn't jawbone
she couldn't jawbone
we couldn't jawbone
you couldn't jawbone
they couldn't jawbone 	I couldn't be jawboning
you couldn't be jawboning
she couldn't be jawboning
we couldn't be jawboning
you couldn't be jawboning
they couldn't be jawboning	I couldn't have jawboned
you couldn't have jawboned
she couldn't have jawboned
we couldn't have jawboned
you couldn't have jawboned
they couldn't have jawboned	I couldn't have been jawboning
you couldn't have been jawboning
she couldn't have been jawboning
we couldn't have been jawboning
you couldn't have been jawboning
they couldn't have been jawboning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I jawbone?
could you jawbone?
could she jawbone?
could we jawbone?
could you jawbone?
could they jawbone? 	could I be jawboning?
could you be jawboning?
could she be jawboning?
could we be jawboning?
could you be jawboning?
could they be jawboning? 	could I have jawboned?
could you have jawboned?
could she have jawboned?
could we have jawboned?
could you have jawboned?
could they have jawboned? 	could I have been jawboning?
could you have been jawboning?
could she have been jawboning?
could we have been jawboning?
could you have been jawboning?
could they have been jawboning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I jawbone?
couldn't you jawbone?
couldn't she jawbone?
couldn't we jawbone?
couldn't you jawbone?
couldn't they jawbone? 	couldn't I be jawboning?
couldn't you be jawboning?
couldn't she be jawboning?
couldn't we be jawboning?
couldn't you be jawboning?
couldn't they be jawboning? 	couldn't I have jawboned?
couldn't you have jawboned?
couldn't she have jawboned?
couldn't we have jawboned?
couldn't you have jawboned?
couldn't they have jawboned? 	couldn't I have been jawboning?
couldn't you have been jawboning?
couldn't she have been jawboning?
couldn't we have been jawboning?
couldn't you have been jawboning?
couldn't they have been jawboning?