I can beard you can beard he can beard we can beard you can beard they can beard
V-ing form
I can be bearding you can be bearding he can be bearding we can be bearding you can be bearding they can be bearding
Perfect
I can have bearded you can have bearded he can have bearded we can have bearded you can have bearded they can have bearded
V-ing perfect
I can have been bearding you can have been bearding he can have been bearding we can have been bearding you can have been bearding they can have been bearding
Negation
Simple form
I cannot beard you cannot beard he cannot beard we cannot beard you cannot beard they cannot beard
V-ing form
I cannot be bearding you cannot be bearding he cannot be bearding we cannot be bearding you cannot be bearding they cannot be bearding
Perfect
I cannot have bearded you cannot have bearded he cannot have bearded we cannot have bearded you cannot have bearded they cannot have bearded
V-ing perfect
I cannot have been bearding you cannot have been bearding he cannot have been bearding we cannot have been bearding you cannot have been bearding they cannot have been bearding
Interrogative form
Simple form
can I beard? can you beard? can he beard? can we beard? can you beard? can they beard?
V-ing form
can I be bearding? can you be bearding? can he be bearding? can we be bearding? can you be bearding? can they be bearding?
Perfect
can I have bearded? can you have bearded? can he have bearded? can we have bearded? can you have bearded? can they have bearded?
V-ing perfect
can I have been bearding? can you have been bearding? can he have been bearding? can we have been bearding? can you have been bearding? can they have been bearding?
Interro-negative form
Simple form
can I not beard? can you not beard? can he not beard? can we not beard? can you not beard? can they not beard?
V-ing form
can I not be bearding? can you not be bearding? can he not be bearding? can we not be bearding? can you not be bearding? can they not be bearding?
Perfect
can I not have bearded? can you not have bearded? can he not have bearded? can we not have bearded? can you not have bearded? can they not have bearded?
V-ing perfect
can I not have been bearding? can you not have been bearding? can he not have been bearding? can we not have been bearding? can you not have been bearding? can they not have been bearding?