Mainstream Cairene لازم + bare imperfect expresses necessity, obligation, or a strong inference. لازم itself does not change for person or gender; the following bare verb identifies who must act. The complement keeps its person prefix and endings but takes neither verbal بـ nor future حـ.
The crucial learning problem is negation scope. مش لازم تروح means “you do not have to go,” while لازم ماتروحش means “you must not go.” English places not near the modal in both ideas; Egyptian builds two different structures. The broader can-and-must guide compares لازم with ability and expectation frames.
Rule 1: لازم is invariant; the bare verb agrees
| Subject | Frame with كتب / يكتب | Meaning |
|---|---|---|
| أنا | لازم أكتب | I must write |
| إنت, man | لازم تكتب | you must write |
| إنت, woman | لازم تكتبي | you must write |
| هو | لازم يكتب | he must write |
| هي | لازم تكتب | she must write |
| إحنا | لازم نكتب | we must write |
| إنتوا | لازم تكتبوا | you all must write |
| هما | لازم يكتبوا | they must write |
هي لازم تراجع الأرقام قبل ما تبعت التقرير.
heyya lāzim tirāgiʿ il-ʾarʾām ʾabl ma tibʿat it-taʾrīr.
She has to review the figures before sending the report.
Feminine subject is expressed by هي and third-person feminine تراجع، تبعت. لازم does not become feminine.
Rule 2: select the bare imperfect, not b- or ḥa-
Compare an actual routine, an obligation, and a projected act:
أنا براجع البريد كل صباح.
ʾana barāgiʿ il-barīd koll ṣabāḥ.
I check the mail every morning. (routine)
أنا لازم أراجع البريد قبل الاجتماع.
ʾana lāzim ʾarāgiʿ il-barīd ʾabl il-igtimāʿ.
I have to check the mail before the meeting. (obligation)
أنا حراجع البريد بعد الغدا.
ʾana ḥarāgiʿ il-barīd baʿd il-ghada.
I'll check the mail after lunch. (future plan)
The action can be future in all but the first sentence, yet لازم still selects bare أراجع. Complement selection outranks a mechanical “future equals حـ” rule.
Time context: current versus past necessity
Present لازم combines with time expressions for current or future obligation. Past necessity or a missed expectation uses كان لازم.
لازم أخلص النسخة النهارده قبل خمسة.
lāzim ʾakhallaṣ in-noskha n-nahārda ʾabl khamsa.
I have to finish the version today before five.
كان لازم أخلصها امبارح، بس الكمبيوتر عطل.
kān lāzim ʾakhallaṣha imbāriḥ, bass il-kombyūtar ʿiṭil.
I was supposed to finish it yesterday, but the computer broke down.
The second sentence often implies an unmet expectation because the following clause explains failure. In another context كان لازم can report an obligation that was fulfilled. Context, not the form alone, decides.
Negation scope: not necessary versus necessary not
Independent مش before لازم negates necessity. Negative ما...ش on the complement makes nonperformance obligatory.
مش لازم تحضر الاجتماع لو خلصت شغلك.
mish lāzim tiḥḍar il-igtimāʿ law khallaṣt shoghlak.
You don't have to attend the meeting if you've finished your work.
لازم ماتتأخرش عن الاجتماع بكرة.
lāzim matitʾakhkharsh ʿan il-igtimāʿ bokra.
You must not be late for the meeting tomorrow.
These are not interchangeable. The first gives permission not to attend. The second imposes a prohibition on lateness.
ماكانش لازم تشتري حاجة؛ وجودك كان كفاية.
makānsh lāzim tishtiri ḥāga; wugūdak kān kifāya.
You didn't need to buy anything; your being there was enough.
This often carries retrospective reassurance or mild regret. It does not automatically assert whether the person bought something; context supplies that inference.
Clitics stay on their verbal host
The bare complement can carry ordinary object and recipient clitics. لازم remains separate; the clitics attach to the action verb.
لازم تبعتهولي قبل ما المدير يطلبه.
lāzim tibʿat-hūli ʾabl ma l-modīr yiṭlobu.
You have to send it to me before the manager asks for it.
ـه is the thing sent, ـلي the recipient, and later ـه again resumes the same thing. English uses separate pronouns; Egyptian keeps the clitics joined.
لازم can express strong inference
Not every لازم imposes an obligation. With evidence and يكون + predicate/perfect, it can express a strong conclusion: “must be / must have.” The subject is not being ordered to do anything.
النور منور فوق؛ لازم يكونوا وصلوا البيت.
in-nūr mnawwar fōʾ; lāzim yikūnu wiṣlu l-bēt.
The light is on upstairs; they must have reached home.
العربية مش هنا، فلازم تكون عند كريم.
il-ʿarabiyya mish hina, fa-lāzim tikūn ʿand Karīm.
The car isn't here, so it must be with Karim.
The evidence supports an inference. A future or deontic reading would not fit the context. This is why translating لازم as English must is only the beginning of analysis.
Two-turn dialogue
لازم أجيب أصل البطاقة؟ ـ لأ، مش لازم؛ صورة واضحة تكفي.
lāzim ʾagīb ʾaṣl il-biṭāʾa? — laʾ, mish lāzim; ṣūra wāḍḥa tikfi.
Do I have to bring the original ID? — No, you don't have to; a clear copy is enough.
The reply omits the repeated complement after مش لازم because the question makes it recoverable.
Register and alternatives
لازم is mainstream Cairene (informal/neutral) and also common in mixed educated speech. ضروري can emphasize necessity, while مفروض often presents expectation, norm, or “supposed to”; they overlap but are not automatic synonyms. Formal MSA has its own necessity frames (formal). Regional, age, class, and community varieties differ in preferred modal expressions (regional/social), while performance may exaggerate لازم for urgency (performance language).
Common Mistakes
1. Adding verbal بـ after لازم
❌ لازم بتحسب التكلفة قبل ما توافق.
Incorrect for obligation — لازم selects a bare imperfect.
✅ لازم تحسب التكلفة قبل ما توافق على العرض.
lāzim tiḥsib it-taklifa ʾabl ma twāfiʾ ʿal-ʿarḍ.
You have to calculate the cost before approving the offer.
2. Making لازم agree
❌ هي لازمة تروح البنك الصبح.
Incorrect — modal لازم is invariant; the following verb marks the feminine subject.
✅ هي لازم تروح البنك قبل الزحمة.
heyya lāzim tirūḥ il-bank ʾabl iz-zaḥma.
She has to go to the bank before it gets crowded.
3. Confusing lack of necessity with prohibition
❌ مش لازم تدخل معناها ممنوع تدخل.
Incorrect scope — مش لازم means entry is not required, not necessarily forbidden.
✅ مش لازم تدخل دلوقتي، لكن لازم ماتدخلش بعد القفل.
mish lāzim tidkhul dilwaʾti, lākin lāzim matidkhulsh baʿd il-ʾafl.
You don't have to enter now, but you must not enter after closing.
4. Separating object and recipient clitics
❌ لازم تبعت هو لي النهارده.
Incorrect segmentation — the object and recipient attach to تبعت.
✅ لازم تديهولي قبل ما تمشي.
lāzim tiddīhūli ʾabl ma timshi.
You have to give it to me before you leave.
Key Takeaways
- لازم is invariant; the bare imperfect carries person, gender, and number.
- Do not add verbal بـ or future حـ to the licensed complement.
- كان لازم anchors necessity in the past and may imply an unmet expectation from context.
- مش لازم removes necessity; لازم ما...ش imposes a negative obligation.
- Evidence can license inferential لازم يكون..., which is a conclusion rather than a command.
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Start learning Arabic →Related Topics
- Ability and ObligationA2 — Distinguish personal ability, situational possibility, permission, suitability, obligation, and prohibition in Cairene Egyptian.
- Person Prefixes and Suffixes in Egyptian ImperfectsA1 — Build the eight Cairene imperfect person forms and see how b-, ḥa-, negation, and object clitics attach around them.
- مش with Nouns, Adjectives, and ParticiplesA2 — Use invariant مش to negate noun, adjective, participial, and prepositional predicates in mainstream Cairene Egyptian Arabic.
- ما...ش in Negative CommandsA2 — Form ordinary Cairene prohibitions by wrapping ما...ش around a second-person bare imperfect and its object clitics.
- كان and Past Nominal SentencesA2 — Use the Egyptian forms of كان to move present identities, states, locations, possession, and existence into a past time frame.