أعراب جملة ما لنا الا اتباع احمد

The sentence “ما لنا الا اتباع احمد” consists of the negating particle “ما” which is indeclinable, “لنا” is a possessive pronoun and is the genitive case, “ا” is a conjunction meaning “except for”, “اتباع” is the subject and is in the nominative case with the sign of being a subject being a fatha, and “احمد” is the object and is in the genitive case with the sign of being an object being a kasra. The sentence translates to “We have nothing except to follow Ahmed” and “Ahmed” is a noun that cannot be declined.