I can brittle you can brittle she can brittle we can brittle you can brittle they can brittle
V-ing form
I can be brittling you can be brittling she can be brittling we can be brittling you can be brittling they can be brittling
Perfect
I can have brittled you can have brittled she can have brittled we can have brittled you can have brittled they can have brittled
V-ing perfect
I can have been brittling you can have been brittling she can have been brittling we can have been brittling you can have been brittling they can have been brittling
Negation
Simple form
I cannot brittle you cannot brittle she cannot brittle we cannot brittle you cannot brittle they cannot brittle
V-ing form
I cannot be brittling you cannot be brittling she cannot be brittling we cannot be brittling you cannot be brittling they cannot be brittling
Perfect
I cannot have brittled you cannot have brittled she cannot have brittled we cannot have brittled you cannot have brittled they cannot have brittled
V-ing perfect
I cannot have been brittling you cannot have been brittling she cannot have been brittling we cannot have been brittling you cannot have been brittling they cannot have been brittling
Interrogative form
Simple form
can I brittle? can you brittle? can she brittle? can we brittle? can you brittle? can they brittle?
V-ing form
can I be brittling? can you be brittling? can she be brittling? can we be brittling? can you be brittling? can they be brittling?
Perfect
can I have brittled? can you have brittled? can she have brittled? can we have brittled? can you have brittled? can they have brittled?
V-ing perfect
can I have been brittling? can you have been brittling? can she have been brittling? can we have been brittling? can you have been brittling? can they have been brittling?
Interro-negative form
Simple form
can I not brittle? can you not brittle? can she not brittle? can we not brittle? can you not brittle? can they not brittle?
V-ing form
can I not be brittling? can you not be brittling? can she not be brittling? can we not be brittling? can you not be brittling? can they not be brittling?
Perfect
can I not have brittled? can you not have brittled? can she not have brittled? can we not have brittled? can you not have brittled? can they not have brittled?
V-ing perfect
can I not have been brittling? can you not have been brittling? can she not have been brittling? can we not have been brittling? can you not have been brittling? can they not have been brittling?