I can isle you can isle she can isle we can isle you can isle they can isle
V-ing form
I can be isling you can be isling she can be isling we can be isling you can be isling they can be isling
Perfect
I can have isled you can have isled she can have isled we can have isled you can have isled they can have isled
V-ing perfect
I can have been isling you can have been isling she can have been isling we can have been isling you can have been isling they can have been isling
Negation
Simple form
I can't isle you can't isle she can't isle we can't isle you can't isle they can't isle
V-ing form
I can't be isling you can't be isling she can't be isling we can't be isling you can't be isling they can't be isling
Perfect
I can't have isled you can't have isled she can't have isled we can't have isled you can't have isled they can't have isled
V-ing perfect
I can't have been isling you can't have been isling she can't have been isling we can't have been isling you can't have been isling they can't have been isling
Interrogative form
Simple form
can I isle? can you isle? can she isle? can we isle? can you isle? can they isle?
V-ing form
can I be isling? can you be isling? can she be isling? can we be isling? can you be isling? can they be isling?
Perfect
can I have isled? can you have isled? can she have isled? can we have isled? can you have isled? can they have isled?
V-ing perfect
can I have been isling? can you have been isling? can she have been isling? can we have been isling? can you have been isling? can they have been isling?
Interro-negative form
Simple form
can't I isle? can't you isle? can't she isle? can't we isle? can't you isle? can't they isle?
V-ing form
can't I be isling? can't you be isling? can't she be isling? can't we be isling? can't you be isling? can't they be isling?
Perfect
can't I have isled? can't you have isled? can't she have isled? can't we have isled? can't you have isled? can't they have isled?
V-ing perfect
can't I have been isling? can't you have been isling? can't she have been isling? can't we have been isling? can't you have been isling? can't they have been isling?