I can brook you can brook she can brook we can brook you can brook they can brook
V-ing form
I can be brooking you can be brooking she can be brooking we can be brooking you can be brooking they can be brooking
Perfect
I can have brooked you can have brooked she can have brooked we can have brooked you can have brooked they can have brooked
V-ing perfect
I can have been brooking you can have been brooking she can have been brooking we can have been brooking you can have been brooking they can have been brooking
Negation
Simple form
I cannot brook you cannot brook she cannot brook we cannot brook you cannot brook they cannot brook
V-ing form
I cannot be brooking you cannot be brooking she cannot be brooking we cannot be brooking you cannot be brooking they cannot be brooking
Perfect
I cannot have brooked you cannot have brooked she cannot have brooked we cannot have brooked you cannot have brooked they cannot have brooked
V-ing perfect
I cannot have been brooking you cannot have been brooking she cannot have been brooking we cannot have been brooking you cannot have been brooking they cannot have been brooking
Interrogative form
Simple form
can I brook? can you brook? can she brook? can we brook? can you brook? can they brook?
V-ing form
can I be brooking? can you be brooking? can she be brooking? can we be brooking? can you be brooking? can they be brooking?
Perfect
can I have brooked? can you have brooked? can she have brooked? can we have brooked? can you have brooked? can they have brooked?
V-ing perfect
can I have been brooking? can you have been brooking? can she have been brooking? can we have been brooking? can you have been brooking? can they have been brooking?
Interro-negative form
Simple form
can I not brook? can you not brook? can she not brook? can we not brook? can you not brook? can they not brook?
V-ing form
can I not be brooking? can you not be brooking? can she not be brooking? can we not be brooking? can you not be brooking? can they not be brooking?
Perfect
can I not have brooked? can you not have brooked? can she not have brooked? can we not have brooked? can you not have brooked? can they not have brooked?
V-ing perfect
can I not have been brooking? can you not have been brooking? can she not have been brooking? can we not have been brooking? can you not have been brooking? can they not have been brooking?