I can mean you can mean she can mean we can mean you can mean they can mean
V-ing form
I can be meaning you can be meaning she can be meaning we can be meaning you can be meaning they can be meaning
Perfect
I can have meant you can have meant she 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 she can have been meaning we can have been meaning you can have been meaning they can have been meaning
Negation
Simple form
I cannot mean you cannot mean she cannot mean we cannot mean you cannot mean they cannot mean
V-ing form
I cannot be meaning you cannot be meaning she cannot be meaning we cannot be meaning you cannot be meaning they cannot be meaning
Perfect
I cannot have meant you cannot have meant she cannot have meant we cannot have meant you cannot have meant they cannot have meant
V-ing perfect
I cannot have been meaning you cannot have been meaning she cannot have been meaning we cannot have been meaning you cannot have been meaning they cannot have been meaning
Interrogative form
Simple form
can I mean? can you mean? can she mean? can we mean? can you mean? can they mean?
V-ing form
can I be meaning? can you be meaning? can she be meaning? can we be meaning? can you be meaning? can they be meaning?
Perfect
can I have meant? can you have meant? can she 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 she have been meaning? can we have been meaning? can you have been meaning? can they have been meaning?
Interro-negative form
Simple form
can I not mean? can you not mean? can she not mean? can we not mean? can you not mean? can they not mean?
V-ing form
can I not be meaning? can you not be meaning? can she not be meaning? can we not be meaning? can you not be meaning? can they not be meaning?
Perfect
can I not have meant? can you not have meant? can she not have meant? can we not have meant? can you not have meant? can they not have meant?
V-ing perfect
can I not have been meaning? can you not have been meaning? can she not have been meaning? can we not have been meaning? can you not have been meaning? can they not have been meaning?