I can veil you can veil he can veil we can veil you can veil they can veil
V-ing form
I can be veiling you can be veiling he can be veiling we can be veiling you can be veiling they can be veiling
Perfect
I can have veiled you can have veiled he can have veiled we can have veiled you can have veiled they can have veiled
V-ing perfect
I can have been veiling you can have been veiling he can have been veiling we can have been veiling you can have been veiling they can have been veiling
Negation
Simple form
I cannot veil you cannot veil he cannot veil we cannot veil you cannot veil they cannot veil
V-ing form
I cannot be veiling you cannot be veiling he cannot be veiling we cannot be veiling you cannot be veiling they cannot be veiling
Perfect
I cannot have veiled you cannot have veiled he cannot have veiled we cannot have veiled you cannot have veiled they cannot have veiled
V-ing perfect
I cannot have been veiling you cannot have been veiling he cannot have been veiling we cannot have been veiling you cannot have been veiling they cannot have been veiling
Interrogative form
Simple form
can I veil? can you veil? can he veil? can we veil? can you veil? can they veil?
V-ing form
can I be veiling? can you be veiling? can he be veiling? can we be veiling? can you be veiling? can they be veiling?
Perfect
can I have veiled? can you have veiled? can he have veiled? can we have veiled? can you have veiled? can they have veiled?
V-ing perfect
can I have been veiling? can you have been veiling? can he have been veiling? can we have been veiling? can you have been veiling? can they have been veiling?
Interro-negative form
Simple form
can I not veil? can you not veil? can he not veil? can we not veil? can you not veil? can they not veil?
V-ing form
can I not be veiling? can you not be veiling? can he not be veiling? can we not be veiling? can you not be veiling? can they not be veiling?
Perfect
can I not have veiled? can you not have veiled? can he not have veiled? can we not have veiled? can you not have veiled? can they not have veiled?
V-ing perfect
can I not have been veiling? can you not have been veiling? can he not have been veiling? can we not have been veiling? can you not have been veiling? can they not have been veiling?