I can hire you can hire he can hire we can hire you can hire they can hire
V-ing form
I can be hiring you can be hiring he can be hiring we can be hiring you can be hiring they can be hiring
Perfect
I can have hired you can have hired he can have hired we can have hired you can have hired they can have hired
V-ing perfect
I can have been hiring you can have been hiring he can have been hiring we can have been hiring you can have been hiring they can have been hiring
Negation
Simple form
I cannot hire you cannot hire he cannot hire we cannot hire you cannot hire they cannot hire
V-ing form
I cannot be hiring you cannot be hiring he cannot be hiring we cannot be hiring you cannot be hiring they cannot be hiring
Perfect
I cannot have hired you cannot have hired he cannot have hired we cannot have hired you cannot have hired they cannot have hired
V-ing perfect
I cannot have been hiring you cannot have been hiring he cannot have been hiring we cannot have been hiring you cannot have been hiring they cannot have been hiring
Interrogative form
Simple form
can I hire? can you hire? can he hire? can we hire? can you hire? can they hire?
V-ing form
can I be hiring? can you be hiring? can he be hiring? can we be hiring? can you be hiring? can they be hiring?
Perfect
can I have hired? can you have hired? can he have hired? can we have hired? can you have hired? can they have hired?
V-ing perfect
can I have been hiring? can you have been hiring? can he have been hiring? can we have been hiring? can you have been hiring? can they have been hiring?
Interro-negative form
Simple form
can I not hire? can you not hire? can he not hire? can we not hire? can you not hire? can they not hire?
V-ing form
can I not be hiring? can you not be hiring? can he not be hiring? can we not be hiring? can you not be hiring? can they not be hiring?
Perfect
can I not have hired? can you not have hired? can he not have hired? can we not have hired? can you not have hired? can they not have hired?
V-ing perfect
can I not have been hiring? can you not have been hiring? can he not have been hiring? can we not have been hiring? can you not have been hiring? can they not have been hiring?