I can advise you can advise he can advise we can advise you can advise they can advise
V-ing form
I can be advising you can be advising he can be advising we can be advising you can be advising they can be advising
Perfect
I can have advised you can have advised he can have advised we can have advised you can have advised they can have advised
V-ing perfect
I can have been advising you can have been advising he can have been advising we can have been advising you can have been advising they can have been advising
Negation
Simple form
I cannot advise you cannot advise he cannot advise we cannot advise you cannot advise they cannot advise
V-ing form
I cannot be advising you cannot be advising he cannot be advising we cannot be advising you cannot be advising they cannot be advising
Perfect
I cannot have advised you cannot have advised he cannot have advised we cannot have advised you cannot have advised they cannot have advised
V-ing perfect
I cannot have been advising you cannot have been advising he cannot have been advising we cannot have been advising you cannot have been advising they cannot have been advising
Interrogative form
Simple form
can I advise? can you advise? can he advise? can we advise? can you advise? can they advise?
V-ing form
can I be advising? can you be advising? can he be advising? can we be advising? can you be advising? can they be advising?
Perfect
can I have advised? can you have advised? can he have advised? can we have advised? can you have advised? can they have advised?
V-ing perfect
can I have been advising? can you have been advising? can he have been advising? can we have been advising? can you have been advising? can they have been advising?
Interro-negative form
Simple form
can I not advise? can you not advise? can he not advise? can we not advise? can you not advise? can they not advise?
V-ing form
can I not be advising? can you not be advising? can he not be advising? can we not be advising? can you not be advising? can they not be advising?
Perfect
can I not have advised? can you not have advised? can he not have advised? can we not have advised? can you not have advised? can they not have advised?
V-ing perfect
can I not have been advising? can you not have been advising? can he not have been advising? can we not have been advising? can you not have been advising? can they not have been advising?