I can auction you can auction he can auction we can auction you can auction they can auction
V-ing form
I can be auctioning you can be auctioning he can be auctioning we can be auctioning you can be auctioning they can be auctioning
Perfect
I can have auctioned you can have auctioned he can have auctioned we can have auctioned you can have auctioned they can have auctioned
V-ing perfect
I can have been auctioning you can have been auctioning he can have been auctioning we can have been auctioning you can have been auctioning they can have been auctioning
Negation
Simple form
I cannot auction you cannot auction he cannot auction we cannot auction you cannot auction they cannot auction
V-ing form
I cannot be auctioning you cannot be auctioning he cannot be auctioning we cannot be auctioning you cannot be auctioning they cannot be auctioning
Perfect
I cannot have auctioned you cannot have auctioned he cannot have auctioned we cannot have auctioned you cannot have auctioned they cannot have auctioned
V-ing perfect
I cannot have been auctioning you cannot have been auctioning he cannot have been auctioning we cannot have been auctioning you cannot have been auctioning they cannot have been auctioning
Interrogative form
Simple form
can I auction? can you auction? can he auction? can we auction? can you auction? can they auction?
V-ing form
can I be auctioning? can you be auctioning? can he be auctioning? can we be auctioning? can you be auctioning? can they be auctioning?
Perfect
can I have auctioned? can you have auctioned? can he have auctioned? can we have auctioned? can you have auctioned? can they have auctioned?
V-ing perfect
can I have been auctioning? can you have been auctioning? can he have been auctioning? can we have been auctioning? can you have been auctioning? can they have been auctioning?
Interro-negative form
Simple form
can I not auction? can you not auction? can he not auction? can we not auction? can you not auction? can they not auction?
V-ing form
can I not be auctioning? can you not be auctioning? can he not be auctioning? can we not be auctioning? can you not be auctioning? can they not be auctioning?
Perfect
can I not have auctioned? can you not have auctioned? can he not have auctioned? can we not have auctioned? can you not have auctioned? can they not have auctioned?
V-ing perfect
can I not have been auctioning? can you not have been auctioning? can he not have been auctioning? can we not have been auctioning? can you not have been auctioning? can they not have been auctioning?