I can employ you can employ he can employ we can employ you can employ they can employ
V-ing form
I can be employing you can be employing he can be employing we can be employing you can be employing they can be employing
Perfect
I can have employed you can have employed he can have employed we can have employed you can have employed they can have employed
V-ing perfect
I can have been employing you can have been employing he can have been employing we can have been employing you can have been employing they can have been employing
Negation
Simple form
I cannot employ you cannot employ he cannot employ we cannot employ you cannot employ they cannot employ
V-ing form
I cannot be employing you cannot be employing he cannot be employing we cannot be employing you cannot be employing they cannot be employing
Perfect
I cannot have employed you cannot have employed he cannot have employed we cannot have employed you cannot have employed they cannot have employed
V-ing perfect
I cannot have been employing you cannot have been employing he cannot have been employing we cannot have been employing you cannot have been employing they cannot have been employing
Interrogative form
Simple form
can I employ? can you employ? can he employ? can we employ? can you employ? can they employ?
V-ing form
can I be employing? can you be employing? can he be employing? can we be employing? can you be employing? can they be employing?
Perfect
can I have employed? can you have employed? can he have employed? can we have employed? can you have employed? can they have employed?
V-ing perfect
can I have been employing? can you have been employing? can he have been employing? can we have been employing? can you have been employing? can they have been employing?
Interro-negative form
Simple form
can I not employ? can you not employ? can he not employ? can we not employ? can you not employ? can they not employ?
V-ing form
can I not be employing? can you not be employing? can he not be employing? can we not be employing? can you not be employing? can they not be employing?
Perfect
can I not have employed? can you not have employed? can he not have employed? can we not have employed? can you not have employed? can they not have employed?
V-ing perfect
can I not have been employing? can you not have been employing? can he not have been employing? can we not have been employing? can you not have been employing? can they not have been employing?