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