I can rush you can rush he can rush we can rush you can rush they can rush
V-ing form
I can be rushing you can be rushing he can be rushing we can be rushing you can be rushing they can be rushing
Perfect
I can have rushed you can have rushed he can have rushed we can have rushed you can have rushed they can have rushed
V-ing perfect
I can have been rushing you can have been rushing he can have been rushing we can have been rushing you can have been rushing they can have been rushing
Negation
Simple form
I cannot rush you cannot rush he cannot rush we cannot rush you cannot rush they cannot rush
V-ing form
I cannot be rushing you cannot be rushing he cannot be rushing we cannot be rushing you cannot be rushing they cannot be rushing
Perfect
I cannot have rushed you cannot have rushed he cannot have rushed we cannot have rushed you cannot have rushed they cannot have rushed
V-ing perfect
I cannot have been rushing you cannot have been rushing he cannot have been rushing we cannot have been rushing you cannot have been rushing they cannot have been rushing
Interrogative form
Simple form
can I rush? can you rush? can he rush? can we rush? can you rush? can they rush?
V-ing form
can I be rushing? can you be rushing? can he be rushing? can we be rushing? can you be rushing? can they be rushing?
Perfect
can I have rushed? can you have rushed? can he have rushed? can we have rushed? can you have rushed? can they have rushed?
V-ing perfect
can I have been rushing? can you have been rushing? can he have been rushing? can we have been rushing? can you have been rushing? can they have been rushing?
Interro-negative form
Simple form
can I not rush? can you not rush? can he not rush? can we not rush? can you not rush? can they not rush?
V-ing form
can I not be rushing? can you not be rushing? can he not be rushing? can we not be rushing? can you not be rushing? can they not be rushing?
Perfect
can I not have rushed? can you not have rushed? can he not have rushed? can we not have rushed? can you not have rushed? can they not have rushed?
V-ing perfect
can I not have been rushing? can you not have been rushing? can he not have been rushing? can we not have been rushing? can you not have been rushing? can they not have been rushing?