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 can't rush you can't rush he can't rush we can't rush you can't rush they can't rush
V-ing form
I can't be rushing you can't be rushing he can't be rushing we can't be rushing you can't be rushing they can't be rushing
Perfect
I can't have rushed you can't have rushed he can't have rushed we can't have rushed you can't have rushed they can't have rushed
V-ing perfect
I can't have been rushing you can't have been rushing he can't have been rushing we can't have been rushing you can't have been rushing they can't 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't I rush? can't you rush? can't he rush? can't we rush? can't you rush? can't they rush?
V-ing form
can't I be rushing? can't you be rushing? can't he be rushing? can't we be rushing? can't you be rushing? can't they be rushing?
Perfect
can't I have rushed? can't you have rushed? can't he have rushed? can't we have rushed? can't you have rushed? can't they have rushed?
V-ing perfect
can't I have been rushing? can't you have been rushing? can't he have been rushing? can't we have been rushing? can't you have been rushing? can't they have been rushing?