could joust
Regular verb: joust - jousted- jousted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could joust
you could joust
she could joust
we could joust
you could joust
they could joust 	I could be jousting
you could be jousting
she could be jousting
we could be jousting
you could be jousting
they could be jousting	I could have jousted
you could have jousted
she could have jousted
we could have jousted
you could have jousted
they could have jousted	I could have been jousting
you could have been jousting
she could have been jousting
we could have been jousting
you could have been jousting
they could have been jousting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't joust
you couldn't joust
she couldn't joust
we couldn't joust
you couldn't joust
they couldn't joust 	I couldn't be jousting
you couldn't be jousting
she couldn't be jousting
we couldn't be jousting
you couldn't be jousting
they couldn't be jousting	I couldn't have jousted
you couldn't have jousted
she couldn't have jousted
we couldn't have jousted
you couldn't have jousted
they couldn't have jousted	I couldn't have been jousting
you couldn't have been jousting
she couldn't have been jousting
we couldn't have been jousting
you couldn't have been jousting
they couldn't have been jousting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I joust?
could you joust?
could she joust?
could we joust?
could you joust?
could they joust? 	could I be jousting?
could you be jousting?
could she be jousting?
could we be jousting?
could you be jousting?
could they be jousting? 	could I have jousted?
could you have jousted?
could she have jousted?
could we have jousted?
could you have jousted?
could they have jousted? 	could I have been jousting?
could you have been jousting?
could she have been jousting?
could we have been jousting?
could you have been jousting?
could they have been jousting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I joust?
couldn't you joust?
couldn't she joust?
couldn't we joust?
couldn't you joust?
couldn't they joust? 	couldn't I be jousting?
couldn't you be jousting?
couldn't she be jousting?
couldn't we be jousting?
couldn't you be jousting?
couldn't they be jousting? 	couldn't I have jousted?
couldn't you have jousted?
couldn't she have jousted?
couldn't we have jousted?
couldn't you have jousted?
couldn't they have jousted? 	couldn't I have been jousting?
couldn't you have been jousting?
couldn't she have been jousting?
couldn't we have been jousting?
couldn't you have been jousting?
couldn't they have been jousting?