no
sincerer, sincerest
more sincere (sincerer), the most sincere (sincerest)
maths is very commercial sub we have to study it very sincerer
to exist = to be = esse
The French word for "exist" is "exister".
The word knowned does not exist. The words known and reknown definitely do exist.
A word that does not exist.
is, are
No
This is word does not exist.
No, the word exist is a verb (exist, exists, existing, existed).The noun form for the verb to exist is existence.