لَا يُؤْمِنُ — a strong expression emphasizing the completion of faith and following guidance.
لَا يَحِلُّ — an expression indicating impermissibility.
لَا تَدْخُلُ and لَا تَصْحَبُ — negative reports about angels.
لَا تُنْزَعُ ... إِلَّا — negation followed by an exception.
The shared particle لَا does not make all the statements identical in meaning; the rest of each sentence determines its teaching.
In these examples, the verb following negative لَا retains its usual present-tense form. Do not confuse this with the prohibitive لَا used in commands, which instead affects the form of the following verb.