I can date you can date he can date we can date you can date they can date
V-ing form
I can be dating you can be dating he can be dating we can be dating you can be dating they can be dating
Perfect
I can have dated you can have dated he can have dated we can have dated you can have dated they can have dated
V-ing perfect
I can have been dating you can have been dating he can have been dating we can have been dating you can have been dating they can have been dating
Negation
Simple form
I can't date you can't date he can't date we can't date you can't date they can't date
V-ing form
I can't be dating you can't be dating he can't be dating we can't be dating you can't be dating they can't be dating
Perfect
I can't have dated you can't have dated he can't have dated we can't have dated you can't have dated they can't have dated
V-ing perfect
I can't have been dating you can't have been dating he can't have been dating we can't have been dating you can't have been dating they can't have been dating
Interrogative form
Simple form
can I date? can you date? can he date? can we date? can you date? can they date?
V-ing form
can I be dating? can you be dating? can he be dating? can we be dating? can you be dating? can they be dating?
Perfect
can I have dated? can you have dated? can he have dated? can we have dated? can you have dated? can they have dated?
V-ing perfect
can I have been dating? can you have been dating? can he have been dating? can we have been dating? can you have been dating? can they have been dating?
Interro-negative form
Simple form
can't I date? can't you date? can't he date? can't we date? can't you date? can't they date?
V-ing form
can't I be dating? can't you be dating? can't he be dating? can't we be dating? can't you be dating? can't they be dating?
Perfect
can't I have dated? can't you have dated? can't he have dated? can't we have dated? can't you have dated? can't they have dated?
V-ing perfect
can't I have been dating? can't you have been dating? can't he have been dating? can't we have been dating? can't you have been dating? can't they have been dating?