I can mean you can mean he can mean we can mean you can mean they can mean
V-ing form
I can be meaning you can be meaning he can be meaning we can be meaning you can be meaning they can be meaning
Perfect
I can have meant you can have meant he can have meant we can have meant you can have meant they can have meant
V-ing perfect
I can have been meaning you can have been meaning he can have been meaning we can have been meaning you can have been meaning they can have been meaning
Negation
Simple form
I can't mean you can't mean he can't mean we can't mean you can't mean they can't mean
V-ing form
I can't be meaning you can't be meaning he can't be meaning we can't be meaning you can't be meaning they can't be meaning
Perfect
I can't have meant you can't have meant he can't have meant we can't have meant you can't have meant they can't have meant
V-ing perfect
I can't have been meaning you can't have been meaning he can't have been meaning we can't have been meaning you can't have been meaning they can't have been meaning
Interrogative form
Simple form
can I mean? can you mean? can he mean? can we mean? can you mean? can they mean?
V-ing form
can I be meaning? can you be meaning? can he be meaning? can we be meaning? can you be meaning? can they be meaning?
Perfect
can I have meant? can you have meant? can he have meant? can we have meant? can you have meant? can they have meant?
V-ing perfect
can I have been meaning? can you have been meaning? can he have been meaning? can we have been meaning? can you have been meaning? can they have been meaning?
Interro-negative form
Simple form
can't I mean? can't you mean? can't he mean? can't we mean? can't you mean? can't they mean?
V-ing form
can't I be meaning? can't you be meaning? can't he be meaning? can't we be meaning? can't you be meaning? can't they be meaning?
Perfect
can't I have meant? can't you have meant? can't he have meant? can't we have meant? can't you have meant? can't they have meant?
V-ing perfect
can't I have been meaning? can't you have been meaning? can't he have been meaning? can't we have been meaning? can't you have been meaning? can't they have been meaning?