I can backlist you can backlist he can backlist we can backlist you can backlist they can backlist
V-ing form
I can be backlisting you can be backlisting he can be backlisting we can be backlisting you can be backlisting they can be backlisting
Perfect
I can have backlisted you can have backlisted he can have backlisted we can have backlisted you can have backlisted they can have backlisted
V-ing perfect
I can have been backlisting you can have been backlisting he can have been backlisting we can have been backlisting you can have been backlisting they can have been backlisting
Negation
Simple form
I can't backlist you can't backlist he can't backlist we can't backlist you can't backlist they can't backlist
V-ing form
I can't be backlisting you can't be backlisting he can't be backlisting we can't be backlisting you can't be backlisting they can't be backlisting
Perfect
I can't have backlisted you can't have backlisted he can't have backlisted we can't have backlisted you can't have backlisted they can't have backlisted
V-ing perfect
I can't have been backlisting you can't have been backlisting he can't have been backlisting we can't have been backlisting you can't have been backlisting they can't have been backlisting
Interrogative form
Simple form
can I backlist? can you backlist? can he backlist? can we backlist? can you backlist? can they backlist?
V-ing form
can I be backlisting? can you be backlisting? can he be backlisting? can we be backlisting? can you be backlisting? can they be backlisting?
Perfect
can I have backlisted? can you have backlisted? can he have backlisted? can we have backlisted? can you have backlisted? can they have backlisted?
V-ing perfect
can I have been backlisting? can you have been backlisting? can he have been backlisting? can we have been backlisting? can you have been backlisting? can they have been backlisting?
Interro-negative form
Simple form
can't I backlist? can't you backlist? can't he backlist? can't we backlist? can't you backlist? can't they backlist?
V-ing form
can't I be backlisting? can't you be backlisting? can't he be backlisting? can't we be backlisting? can't you be backlisting? can't they be backlisting?
Perfect
can't I have backlisted? can't you have backlisted? can't he have backlisted? can't we have backlisted? can't you have backlisted? can't they have backlisted?
V-ing perfect
can't I have been backlisting? can't you have been backlisting? can't he have been backlisting? can't we have been backlisting? can't you have been backlisting? can't they have been backlisting?