LessonsComplete Imperfect Paradigm: Active, Passive, Affirmative and NegativeQuiz

In the negative active third-person masculine paradigm, لَا precedes each active verb without changing the person or number ending:

Word / formMeaning / explanation
Singular: لَا يَفْعَلُhe does not / will not do.
Dual: لَا يَفْعَلَانِthose two men do not / will not do.
Plural: لَا يَفْعَلُونَthe men do not / will not do.

The suffixes of يَفْعَلَانِ and يَفْعَلُونَ are unchanged when ordinary negative لَا is prefixed. This is different from the jussive forms governed by لَمْ, treated in the next section.
The negative active third-person feminine forms are:

Word / formMeaning / explanation
Singular: لَا تَفْعَلُshe does not / will not do.
Dual: لَا تَفْعَلَانِthe two women do not / will not do.
Plural: لَا يَفْعَلْنَthe women do not / will not do.

In the feminine third-person plural, the correct form is لَا يَفْعَلْنَ. The initial يَ is its active imperfect prefix; final ـنَ indicates feminine plural. Simple negation does not change these markers.

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Negative active imperfect: all third-person forms

Complete Imperfect Paradigm: Active, Passive, Affirmative and Negative

In the negative active third-person masculine paradigm, لَا precedes each active verb without changing the person or number ending:

Word / formMeaning / explanation
Singular: لَا يَفْعَلُhe does not / will not do.
Dual: لَا يَفْعَلَانِthose two men do not / will not do.
Plural: لَا يَفْعَلُونَthe men do not / will not do.

The suffixes of يَفْعَلَانِ and يَفْعَلُونَ are unchanged when ordinary negative لَا is prefixed. This is different from the jussive forms governed by لَمْ, treated in the next section.
The negative active third-person feminine forms are:

Word / formMeaning / explanation
Singular: لَا تَفْعَلُshe does not / will not do.
Dual: لَا تَفْعَلَانِthe two women do not / will not do.
Plural: لَا يَفْعَلْنَthe women do not / will not do.

In the feminine third-person plural, the correct form is لَا يَفْعَلْنَ. The initial يَ is its active imperfect prefix; final ـنَ indicates feminine plural. Simple negation does not change these markers.