The Prohibitive: Negation, Prohibition and Jussive Endings

Read the bilingual lesson for The Prohibitive: Negation, Prohibition and Jussive Endings and test your understanding with a focused quiz.

Lesson

1. The Prohibitive: Telling Someone Not to Act

The prohibitive verb tells someone not to do an action. لَا تَكْتُبْ — do not write. The particle لَا is placed before an imperfect verb and makes it jussive (akhaf). The intended meaning is a prohibition, not merely a statement that an action does not happen.

2. Negation and Prohibition Are Different

The same particle can appear in two different meanings. Read both the meaning and the verb ending. تَكْتُبُ — you write or will write. لَا تَكْتُبُ — you do not write or will not write: negation; the final ḍammah remains. لَا تَكْتُبْ — do not write: prohibition; the final consonant is sakin. Urdu “نہیں” usually states non-occurrence; “مت” normally expresses prohibition.

3. How the Jussive Ending Appears

Recall the ending groups taught before. Prohibitive لَا applies the same jussive changes. ● A regular final consonant receives sukun: تَكْتُبُ ← لَا تَكْتُبْ. ● A form ending in inflectional nūn loses that nūn: تَقْتُلُونَ ← لَا تَقْتُلُوا. ● The feminine-plural pronominal nūn remains: تَكْتُبْنَ ← لَا تَكْتُبْنَ. Do not delete every nūn: inflectional and pronominal nūn are different.

4. Dual and Plural Prohibitions

When inflectional nūn is removed, the remaining ending still identifies the addressee. لَا تَقْرَبَا هٰذِهِ الشَّجَرَةَ Do not approach this tree, you two. The dual nūn has been removed; final ا remains. لَا تَقْتُلُوا أَوْلَادَكُمْ Do not kill your children. The masculine-plural nūn has been removed; final وا remains.

5. A Prohibition Can Use a Third-Person Form

Do not assume that every prohibitive must visibly begin with second-person تَ. A prohibition may also be expressed with a third-person form. لَا يَسْخَرْ قَوْمٌ مِنْ قَوْمٍ No group should ridicule another group. Here يَسْخَرْ is a singular masculine third-person imperfect in the jussive state. The surrounding sentence expresses a prohibition.

6. Prohibition in Respectful Speech

Two examples prohibit raising the voice or speaking loudly in a particular manner. لَا تَرْفَعُوا أَصْوَاتَكُمْ فَوْقَ صَوْتِ النَّبِيِّ Do not raise your voices above the Prophet's voice. لَا تَجْهَرُوا لَهُ بِالْقَوْلِ كَجَهْرِ بَعْضِكُمْ لِبَعْضٍ Do not speak loudly to him as you speak loudly to one another. Both verbs lose inflectional nūn: تَرْفَعُونَ ← تَرْفَعُوا, تَجْهَرُونَ ← تَجْهَرُوا.

7. Recognize the Meaning from Context

The form and the intended meaning work together. لَا تَقْنَطُوا مِنْ رَحْمَةِ اللَّهِ Do not despair of Allah's mercy. The final وا shows a masculine plural form after removal of inflectional nūn. The context clearly tells the group not to do an action, so لَا is prohibitive rather than merely negative.

8. Apply the Rule to Complete Sentences

Build the prohibition first, then complete the sentence naturally. لَا تَخَفْ إِنَّ اللَّهَ مَعَنَا — do not fear; surely Allah is with us. لَا تَدْخُلُوا مِنْ بَابٍ وَاحِدٍ — do not enter through a single gate. لَا تَكْتُمُوا الشَّهَادَةَ — do not conceal testimony. Notice: singular تَخَافُ becomes تَخَفْ when jussive; this weak-verb change is shown here as a complete form to recognize, not generalized into a new weak-verb lesson.

9. Apply the Rule - and Notice Missing Context

When the intended addressee is clear, the verb form is clear; an underspecified Urdu pronoun may not determine it. لَا تَأْكُلُوا بِالشِّمَالِ فَإِنَّ الشَّيْطَانَ يَأْكُلُ بِالشِّمَالِ Do not eat with the left hand, for Satan eats with the left hand. Here “you all” clearly requires تَأْكُلُوا. The Urdu prompt “وہ ٹھنڈا پانی نہ پیئیں” does not by itself tell us whether “وہ” refers respectfully to one person or to several people. Arabic person and number must not be guessed without context.

10. A Reliable Three-Part Check

Check meaning, particle and ending together. 1. The sentence prevents an action: “do not” or “let ... not.” 2. Prohibitive لَا comes before an imperfect verb. 3. The imperfect verb is jussive: sukun, removal of inflectional nūn, or another already established jussive form. A negative statement with لَا is not automatically a prohibition. Ask whether the speaker is reporting non-occurrence or preventing an action.

Practice questions

Question 1

Which sentence is a prohibition?

  • لَا تَكْتُبْ
  • لَا تَكْتُبُ
  • كَتَبْتَ
  • تَكْتُبُ

Question 2

What does prohibitive لَا do to the imperfect verb?

  • It makes it past tense.
  • It makes it jussive (akhaf).
  • It always makes it plural.
  • It turns it into a noun.

Question 3

Choose the correct prohibition for a group: ‘Do not conceal the testimony.’

  • لَا تَكْتُمُونَ الشَّهَادَةَ
  • لَا يَكْتُمُوا الشَّهَادَةَ
  • لَا تَكْتُمُوا الشَّهَادَةَ
  • لَا تَكْتُمْ الشَّهَادَةَ

Question 4

Which analysis fits لَا يَسْخَرْ قَوْمٌ مِنْ قَوْمٍ?

  • A negative past-tense sentence
  • A second-person feminine command
  • A statement that ridicule never happens
  • A third-person jussive expressing prohibition

Question 5

What happened in تَقْرَبَانِ ← لَا تَقْرَبَا?

  • The dual inflectional nūn was removed.
  • A feminine pronominal nūn was added.
  • The verb became past tense.
  • The final alif was removed.

Question 6

Which form means ‘you do not write’ as a statement, not ‘do not write’?

  • لَا تَكْتُبْ
  • لَا تَكْتُبُ
  • لَنْ تَكْتُبَ
  • اُكْتُبْ

Question 7

Choose a correct unseen prohibition to one man: ‘Do not drink the water.’

  • لَا تَشْرَبُ الْمَاءَ
  • لَا شَرِبْتَ الْمَاءَ
  • لَا تَشْرَبْ الْمَاءَ
  • لَا يَشْرَبْ الْمَاءَ

Question 8

Match each term with its meaning.

Question 9

Match each sentence with its grammatical analysis.

Question 10

Every sentence beginning with لَا is a prohibition.

Question 11

In لَا تَكْتُبْنَ, the feminine-plural pronominal nūn remains.

Question 12

Sort each sentence by whether it reports or prevents an action.

Question 13

Sort the starting imperfect forms by the jussive change needed after prohibitive لَا.

Question 14

Arrange the words to say: ‘Do not despair of Allah's mercy.’

Question 15

Arrange a simple prohibition to one student: ‘Do not open the door.’

Open the interactive quiz