I can burnish you can burnish he can burnish we can burnish you can burnish they can burnish
V-ing form
I can be burnishing you can be burnishing he can be burnishing we can be burnishing you can be burnishing they can be burnishing
Perfect
I can have burnished you can have burnished he can have burnished we can have burnished you can have burnished they can have burnished
V-ing perfect
I can have been burnishing you can have been burnishing he can have been burnishing we can have been burnishing you can have been burnishing they can have been burnishing
Negation
Simple form
I can't burnish you can't burnish he can't burnish we can't burnish you can't burnish they can't burnish
V-ing form
I can't be burnishing you can't be burnishing he can't be burnishing we can't be burnishing you can't be burnishing they can't be burnishing
Perfect
I can't have burnished you can't have burnished he can't have burnished we can't have burnished you can't have burnished they can't have burnished
V-ing perfect
I can't have been burnishing you can't have been burnishing he can't have been burnishing we can't have been burnishing you can't have been burnishing they can't have been burnishing
Interrogative form
Simple form
can I burnish? can you burnish? can he burnish? can we burnish? can you burnish? can they burnish?
V-ing form
can I be burnishing? can you be burnishing? can he be burnishing? can we be burnishing? can you be burnishing? can they be burnishing?
Perfect
can I have burnished? can you have burnished? can he have burnished? can we have burnished? can you have burnished? can they have burnished?
V-ing perfect
can I have been burnishing? can you have been burnishing? can he have been burnishing? can we have been burnishing? can you have been burnishing? can they have been burnishing?
Interro-negative form
Simple form
can't I burnish? can't you burnish? can't he burnish? can't we burnish? can't you burnish? can't they burnish?
V-ing form
can't I be burnishing? can't you be burnishing? can't he be burnishing? can't we be burnishing? can't you be burnishing? can't they be burnishing?
Perfect
can't I have burnished? can't you have burnished? can't he have burnished? can't we have burnished? can't you have burnished? can't they have burnished?
V-ing perfect
can't I have been burnishing? can't you have been burnishing? can't he have been burnishing? can't we have been burnishing? can't you have been burnishing? can't they have been burnishing?