I am not myself now.
I am not me now.
I am not I now.
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Which one is grammatical?
To determine which sentence is grammatically correct, we need to analyze the structure and syntax of each sentence.
1. "I am not myself now": This sentence is grammatically correct. It follows the typical subject-verb-object pattern, where "I" is the subject, "am" is the linking verb, and "myself" is the object pronoun referring back to the subject.
2. "I am not me now": This sentence is also grammatically correct. It uses "me" as a direct object pronoun, which is a common way to refer to oneself. While it may sound informal, it is still considered grammatically correct.
3. "I am not I now": This sentence is grammatically incorrect. The use of "I" as the object pronoun is not standard grammar. In this case, it would be more appropriate to use the objective pronoun "me."
So, both the first and second sentences are grammatically correct, but the third sentence is not.