Egyptian Arabic has two important ways to tell an addressee not to act. ماتعملش is the ordinary negative command “don’t do,” while إوعى تعمل is a stronger warning: “watch out—don’t do,” “you’d better not,” or, with the right tone, “don’t you dare.” They can describe the same unwanted action but do different interpersonal work.
Neither construction is an English-style infinitive after do not. Both use an Egyptian bare second-person imperfect form, without بـ or future حـ, and both agree with the person being addressed. The broader system is developed under negative imperatives.
Rule 1: use ما...ش for an ordinary negative instruction
The neutral pattern is ما + second-person bare imperfect + ش, written as one word. The تـ belongs to the verb and identifies the addressee.
| Addressee | Form | Meaning |
|---|---|---|
| masculine singular | ماتلمسش ma-tilmis-sh | don’t touch |
| feminine singular | ماتلمسيش ma-tilmis-ī-sh | don’t touch |
| plural | ماتلمسوش ma-tilmis-ū-sh | don’t touch |
ماتقفلش النور، أنا لسه هنا.
ma-tiʾfilsh in-nūr, ʾana lissa hina.
Don’t turn off the light; I’m still here.
ماتستنيش تحت، اطلعي على طول.
ma-tistannīsh taḥt, iṭlaʿi ʿala ṭūl.
Don’t wait downstairs; come straight up. (to a woman)
ماتتأخروش عشان القطر مش حيستنى.
ma-titʾakhkharūsh ʿashān il-ʾaṭr mish ḥa-yistanna.
Don’t be late, because the train won’t wait. (to several people)
The last clause uses حـ because it is a future prediction. The prohibition itself uses neither بـ nor حـ: ما...ش licenses the bare imperfect.
Rule 2: use إوعى for danger, emphatic prevention, or a threat
إوعى precedes a bare second-person imperfect and carries the warning force. Its strength comes from the construction and intonation, not from a separate word meaning English not.
إوعى تلمس السلك، الكهربا لسه شغالة.
iwʿa tilmis is-silk, il-kahraba lissa shaghghāla.
Don’t touch the wire—the electricity is still on.
إوعي تنسي الباسبور في الفندق.
iwʿi tinsi l-bāsbūr fi l-fondoʾ.
Whatever you do, don’t forget the passport at the hotel. (to a woman)
إوعوا تعدوا الشارع والإشارة حمرا.
iwʿu tiʿaddu sh-shāriʿ wi-l-ʾishāra ḥamra.
Don’t cross the street while the light is red. (to several people)
Rule 3: agreement appears twice with إوعى
The warning word and the following verb both track the addressee.
| Addressee | Strong prohibition |
|---|---|
| masculine singular | إوعى تلمس iwʿa tilmis |
| feminine singular | إوعي تلمسي iwʿi tilmisi |
| plural | إوعوا تلمسوا iwʿu tilmisu |
English don’t touch hides all of these distinctions. In Cairo, using masculine singular to a woman or one singular form to a group can sound careless even though the warning remains understandable.
A time-and-force contrast
An ordinary instruction can be restricted to the current situation. إوعى often presents the action as dangerous or categorically unacceptable, though context can still limit it.
ماتفتحش الباب دلوقتي، أنا بغير هدومي.
ma-tiftaḥsh il-bāb dilwaʾti, ʾana baghayyar hudūmi.
Don’t open the door right now; I’m changing clothes.
إوعى تفتح الباب لحد ماتعرفوش.
iwʿa tiftaḥ il-bāb li-ḥadd ma-tiʿrafūsh.
Never open the door to someone you don’t know.
This is not a tense contrast: both prohibitions concern unrealized actions. It is a contrast in discourse force, scope, and situation.
Rule 4: clitics stay inside the prohibited verb
With ما...ش, an object clitic comes before final -ش. With إوعى, the clitic attaches to the following bare verb.
سيب الشنطة هنا، بس ماتسيبهاش برة.
sīb ish-shanṭa hina, bass ma-tisībhāsh barra.
Leave the bag here, but don’t leave it outside.
إوعى تديه المفتاح قبل ما تكلمني.
iwʿa tiddīh il-miftāḥ ʾabl ma tikallimni.
Don’t give him the key before you call me.
The verb ادّى / بيدي takes a recipient object; تديه packages “give him” as one written word. Spacing the pronoun off or placing -ش before it breaks the Egyptian clitic order.
A positive-to-negative pair
امسك السلم من هنا.
imsik is-sullam min hina.
Hold the ladder here.
ماتمسكش السلك اللي جنبه.
ma-timsiksh is-silk illi ganbo.
Don’t grab the wire next to it.
Register and social force
Both constructions are everyday Egyptian. إوعى is common among relatives, friends, adults warning children, and anyone reacting to immediate danger (informal/everyday). In a calm request to a customer, supervisor, or stranger, it can sound scolding or confrontational. A polite negative request with ممكن or ياريت is usually better unless safety makes directness appropriate.
Formal MSA prohibitions use a different system with لا and formal mood marking (formal/MSA). Those forms are legitimate in formal speech, religious language, and scripted performance, but they are not the baseline Cairo paradigm taught here.
A two-turn Cairo dialogue
ممكن أعدي من هنا؟
momkin ʾaʿaddi min hina?
Can I pass through here?
إوعى تمشي هنا، الأرض مبلولة.
iwʿa timshi hina, il-ʾarḍ mablūla.
Don’t walk here—the floor is wet.
The abrupt إوعى is appropriate because the response prevents immediate danger. In a low-stakes setting, the same wording could sound unnecessarily harsh.
Common Mistakes
Adding b- after إوعى
❌ إوعى بتلمس السلك.
Incorrect—إوعى licenses a bare second-person imperfect, not a b-imperfect.
✅ إوعى تلمس السلك.
iwʿa tilmis is-silk.
Don’t touch the wire.
Adding ordinary negation after إوعى
❌ إوعى ماتفتحش الباب.
Incorrect for the intended ‘don’t open’ warning—the default frame is إوعى + affirmative bare imperfect.
✅ إوعى تفتح الباب.
iwʿa tiftaḥ il-bāb.
Don’t open the door.
Losing feminine agreement
❌ إوعى تنسى يا سارة.
Incorrect in the Cairene baseline—both the warning and verb should be feminine singular.
✅ إوعي تنسي يا سارة.
iwʿi tinsi ya Sāra.
Don’t forget, Sara.
Separating a clitic from ما...ش
❌ ماتسيب ها ش برة.
Incorrect—verb, object pronoun, and negative suffix form one orthographic word.
✅ ماتسيبهاش برة.
ma-tisībhāsh barra.
Don’t leave it outside.
Using a warning as routine customer politeness
❌ إوعى تتأخر يا فندم.
Register mismatch—without real danger, this sounds like scolding a customer.
✅ ياريت ماتتأخرش يا فندم.
yārēt ma-titʾakhkharsh ya fandim.
Please try not to be late, sir.
Key Takeaways
- ما...ش forms an ordinary negative command around the second-person bare imperfect.
- إوعى + bare imperfect is a stronger warning or prohibition.
- Masculine singular, feminine singular, and plural addressees have distinct forms.
- Object clitics attach before -ش or directly to the verb after إوعى.
- Strength is pragmatic: a forceful form can be grammatically correct but socially mismatched.
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- ما...ش in Negative CommandsA2 — Form ordinary Cairene prohibitions by wrapping ما...ش around a second-person bare imperfect and its object clitics.
- Polite Egyptian Requests beyond the Bare ImperativeA2 — Choose natural Cairene request frames with ممكن, لو سمحت, من فضلك, and ياريت according to relationship and force.
- Imperative Gender and Number FormsA2 — Choose masculine singular, feminine singular, and plural command endings across regular and high-frequency Egyptian verbs.
- Clitics inside ما...شA2 — Build Egyptian negative words in the order ما + host + object and recipient clitics + ش, including the stem adjustments that attachment triggers.
- Advice versus ObligationB1 — Separate optional recommendations from social expectations and real necessity with Cairene advice and obligation strategies.