Read a passive imperfect in four steps.
1. Find the imperfect prefix: أ، ن، ي، ت.
2. Check that this prefix has dammah.
3. Check that the penultimate root letter has fatḥah.
4. Decide whether the receiver is encoded in the verb form or appears afterward as a nominative noun.
Then use context, لَا or سَـ to choose a present, negative or future translation.