I can ambulate you can ambulate she can ambulate we can ambulate you can ambulate they can ambulate
V-ing form
I can be ambulating you can be ambulating she can be ambulating we can be ambulating you can be ambulating they can be ambulating
Perfect
I can have ambulated you can have ambulated she can have ambulated we can have ambulated you can have ambulated they can have ambulated
V-ing perfect
I can have been ambulating you can have been ambulating she can have been ambulating we can have been ambulating you can have been ambulating they can have been ambulating
Negation
Simple form
I can't ambulate you can't ambulate she can't ambulate we can't ambulate you can't ambulate they can't ambulate
V-ing form
I can't be ambulating you can't be ambulating she can't be ambulating we can't be ambulating you can't be ambulating they can't be ambulating
Perfect
I can't have ambulated you can't have ambulated she can't have ambulated we can't have ambulated you can't have ambulated they can't have ambulated
V-ing perfect
I can't have been ambulating you can't have been ambulating she can't have been ambulating we can't have been ambulating you can't have been ambulating they can't have been ambulating
Interrogative form
Simple form
can I ambulate? can you ambulate? can she ambulate? can we ambulate? can you ambulate? can they ambulate?
V-ing form
can I be ambulating? can you be ambulating? can she be ambulating? can we be ambulating? can you be ambulating? can they be ambulating?
Perfect
can I have ambulated? can you have ambulated? can she have ambulated? can we have ambulated? can you have ambulated? can they have ambulated?
V-ing perfect
can I have been ambulating? can you have been ambulating? can she have been ambulating? can we have been ambulating? can you have been ambulating? can they have been ambulating?
Interro-negative form
Simple form
can't I ambulate? can't you ambulate? can't she ambulate? can't we ambulate? can't you ambulate? can't they ambulate?
V-ing form
can't I be ambulating? can't you be ambulating? can't she be ambulating? can't we be ambulating? can't you be ambulating? can't they be ambulating?
Perfect
can't I have ambulated? can't you have ambulated? can't she have ambulated? can't we have ambulated? can't you have ambulated? can't they have ambulated?
V-ing perfect
can't I have been ambulating? can't you have been ambulating? can't she have been ambulating? can't we have been ambulating? can't you have been ambulating? can't they have been ambulating?