Cannot vs. Can not
Have you ever thought to yourself as to why we have two negation forms in the English form in the English language? Well, I'll tell you why.
What Is Their Main Difference?
Both of these words look the same but they are completely different. 'Cannot' in the negation of 'can'. 'Can not', however, is used when we want to to the structure 'not only but also'.
Differences
'Cannot' is the negative form of 'can'. It can be used in written, formal English. Look:
I really
They
We mainly use 'can not' to indicate that someone can do something along with other things. It is mainly used with the 'not only but also' structure' Check out the following examples:
The police
My parents
Similarities
They do not have any similarities.
Are They Interchangeable?
We cannot use them interchangeably because using 'can not' to negate a sentence is wrong. Compare:
✓ I said I
X I said I