Form-I بَدَأَ / يَبْدَأُ “begin; start” has hamzated root ب د أ. It can introduce an event noun (بدأ الاجتماع “the meeting began”), take an object (بدأ الفريق العمل “the team began the work”), or introduce an activity through an imperfect clause or verbal noun. The choice of complement determines mood and argument structure.
The most direct inchoative frame is بدأ + imperfect indicative, with no أنْ: بدأت مريم تكتبُ “Maryam began writing.” Contemporary formal prose also contains بدأ أنْ + subjunctive, especially when بدأ behaves as a full lexical verb taking a clause-like nominal complement. Conservative editing often prefers the shorter direct imperfect. Whichever variant you use, do not mix its mood rules.
The أنْ complement guide explains the subjunctive independently; this page contrasts it with the ungoverned direct-imperfect frame.
Five complement shapes
| Frame | Example | What begins | Core register |
|---|---|---|---|
| بدأ + event subject | بَدَأَ الِاجْتِمَاعُ | the event itself | neutral formal MSA |
| بدأ + direct object | بَدَأَ الْفَرِيقُ الْعَمَلَ | an undertaking | neutral formal MSA |
| بدأ + bare imperfect | بَدَأَ الْفَرِيقُ يَعْمَلُ | an action by the same subject | very common, concise |
| بدأ في + verbal noun | بَدَأَ الْفَرِيقُ فِي الْعَمَلِ | entry into a process | common formal MSA |
| بدأ أنْ + subjunctive | بَدَأَ الْفَرِيقُ أَنْ يَعْمَلَ | a clause-like activity | attested modern variant; editorial preferences vary |
The frames overlap in meaning but are not mechanically interchangeable in every sentence. Noun complements can introduce an independent event or project; the direct imperfect normally shares its understood subject with بدأ.
An event can begin by itself
When the event noun is the grammatical subject, بدأ is intransitive.
بدأ الاجتماع في التاسعة وانتهى قبل الظهر.
badaʾa l-ijtimāʿu fī t-tāsiʿati wa-ntahā qabla ẓ-ẓuhr.
The meeting began at nine and ended before noon.
Root hamza remains in بدأَ / يبدأُ. Final-weak اِنْتَهَى / يَنْتَهِي “end” has root ن ه ي; connected وانتهى elides its initial hamzat al-waṣl.
يبدأ الفصل الدراسي الجديد الأسبوع المقبل.
yabdaʾu l-faṣlu d-dirāsiyyu l-jadīdu l-ʾusbūʿa l-muqbil.
The new semester begins next week.
The imperfect receives future time from الأسبوع المقبل; no English-style auxiliary is built into يبدأُ.
A person or organization can begin an undertaking
Transitive بدأ can take a noun object naming work, a project, negotiations, or another bounded undertaking.
بدأ الفريق العمل على النسخة الجديدة في يناير.
badaʾa l-farīqu l-ʿamala ʿalā n-nuskhati l-jadīdati fī yanāyir.
The team began work on the new version in January.
بدأت الوزارة مشروعا لتحديث المدارس القديمة.
badaʾati l-wizāratu mashrūʿan li-taḥdīthi l-madārisi l-qadīma(h).
The ministry launched a project to modernize the old schools.
“Launch” is natural English for this transitive use. The Arabic lexical verb is still بدأ, and the object is accusative.
Direct imperfect: the central inchoative frame
When بدأ means that its subject started performing an action, a bare imperfect is extremely common. It remains indicative because no subjunctive governor is present.
بدأت مريم تراجع الفواتير بعد الغداء.
badaʾat maryamu turājiʿu l-fawātīra baʿda l-ghadāʾ.
Maryam began reviewing the invoices after lunch.
Both verbs share subject Maryam: feminine بدأتْ and feminine singular تراجعُ.
بدأ الباحثون يراجعون النتائج فور وصولها.
badaʾa l-bāḥithūna yurājiʿūna n-natāʾija fawra wuṣūlihā.
The researchers began reviewing the results as soon as they arrived.
Neutral VSO has singular بدأَ before overt plural الباحثون. The complement's understood subject is plural, so indicative يراجعونَ has full plural agreement and retains ن.
With a subject first, both verbs agree fully:
الطالبتان بدأتا تكتبان مقدمة البحث معا.
ʾaṭ-ṭālibatāni badaʾatā taktubāni muqaddimata l-baḥthi maʿā.
The two female students began writing the paper's introduction together.
Dual indicative تكتبانِ retains nūn. The direct complement is not subjunctive merely because English uses an infinitive after begin.
أنْ + subjunctive: an attested modern variant
When overt أنْ introduces the activity, the following imperfect is subjunctive. This frame occurs in contemporary formal prose, although traditional treatment of بدأ as a strict “verb of beginning” favors the direct imperfect without أنْ. A learner writing conservative concise MSA can prefer بدأ يكتب; a text containing بدأ أن يكتب is not licensed to retain indicative endings.
بدأ الباحثون أن يراجعوا النتائج في مجموعات صغيرة.
badaʾa l-bāḥithūna ʾan yurājiʿū n-natāʾija fī majmūʿātin ṣaghīra(h).
The researchers began to review the results in small groups. (Attested modern variant.)
Compare direct indicative يراجعونَ with overt-أنْ subjunctive يراجعوا. The first is the safer default in conservative edited prose.
بدأت الأسعار أن تنخفض بعد زيادة الإنتاج.
badaʾati l-ʾasʿāru ʾan tankhafiḍa baʿda ziyādati l-ʾintāj.
Prices began to decline after production increased. (Attested modern variant.)
Nonhuman plural الأسعارُ takes feminine singular بدأتْ and تنخفضَ. Overt أنْ makes the final fatḥa part of the grammatical contrast demonstrated here.
في + verbal noun foregrounds the process
بدأ في + maṣdar is a common alternative when the activity is naturally packaged as a process or undertaking.
بدأ المهندس في إعداد المخطط النهائي.
badaʾa l-muhandisu fī ʾiʿdādi l-mukhaṭṭaṭi n-nihāʾiyy.
The engineer began preparing the final plan.
Form-IV maṣdar إعداد is genitive after في and heads the iḍāfa إعداد المخطط. No second finite verb is present.
بدأنا في تنظيم الملفات قبل انتقال المكتب.
badaʾnā fī tanẓīmi l-milaffāti qabla ntiqāli l-maktab.
We began organizing the files before the office moved.
The subject is encoded once in بدأنا. The verbal noun has no person or tense.
Keep the initiator and activity subject clear
In direct بدأ + imperfect, the understood subject of the imperfect normally refers back to the subject of بدأ. If one person causes somebody else to start, use a causative or a separate clause rather than placing two competing subjects into the frame.
طلب المدير من الموظفين أن يبدؤوا كتابة التقرير.
ṭalaba l-mudīru mina l-muwaẓẓafīna ʾan yabdaʾū kitābata t-taqrīr.
The director asked the employees to begin writing the report.
The manager is subject of طلب; the employees are understood subject of subjunctive يبدؤوا. This is clearer than an overloaded sequence such as “the manager began the employees writing.”
Other inchoative predicates have their own register
Contemporary formal MSA also uses:
- شَرَعَ في + maṣdar “set about” (formal);
- أَخَذَ + bare imperfect “began and continued” (formal narrative);
- جَعَلَ + bare imperfect “began/kept doing” (formal/literary depending on context).
شرعت اللجنة في إعداد تقريرها النهائي.
sharaʿati l-lajnatu fī ʾiʿdādi taqrīrihā n-nihāʾiyy.
The committee set about preparing its final report. (Formal)
أخذ الخبير يشرح الفرق بين الخيارين.
ʾakhadha l-khabīru yashraḥu l-farqa bayna l-khiyārayn.
The expert began explaining the difference between the two options. (Formal narrative)
Traditional طَفِقَ is now mainly (literary/Classical). It should be recognized in elevated or older writing, not presented as an everyday interchangeable alternative to بدأ.
Weak complements keep their real stems
The inchoative frame does not regularize its complement. Hollow قَالَ / يَقُولُ “say” (root ق و ل) remains يقولُ after direct بدأ.
بدأ المدير يقول إن الخطة تحتاج إلى مراجعة.
badaʾa l-mudīru yaqūlu ʾinna l-khuṭṭata taḥtāju ʾilā murājaʿa(h).
The director began saying that the plan needed review.
In a more natural one-time speech context, بدأ المدير يشرح may be preferable to repeated “began saying”; lexical choice still matters.
Common Mistakes
Keeping indicative nūn after overt أنْ
❌ بدأ الباحثون أن يراجعون النتائج.
Incorrect — أنْ governs subjunctive يراجعوا without final nūn.
✅ بدأ الباحثون أن يراجعوا النتائج.
badaʾa l-bāḥithūna ʾan yurājiʿū n-natāʾij.
The researchers began to review the results. (Attested modern variant.)
Dropping indicative nūn in the direct frame
❌ بدأ الباحثون يراجعوا النتائج.
Incorrect — without أنْ, the direct imperfect is indicative يراجعون.
✅ بدأ الباحثون يراجعون النتائج.
badaʾa l-bāḥithūna yurājiʿūna n-natāʾij.
The researchers began reviewing the results.
Using full plural agreement before an overt subject
❌ بدأوا الموظفون العمل في التاسعة.
Incorrect as neutral formal-MSA VSO — use singular بدأ before the overt plural subject.
✅ بدأ الموظفون العمل في التاسعة.
badaʾa l-muwaẓẓafūna l-ʿamala fī t-tāsiʿa(h).
The employees began work at nine.
Giving the activity a competing subject
❌ بدأ المدير الموظفين يكتبون التقرير.
Incorrect argument structure — direct بدأ + imperfect normally shares one subject.
✅ طلب المدير من الموظفين أن يكتبوا التقرير.
ṭalaba l-mudīru mina l-muwaẓẓafīna ʾan yaktubū t-taqrīr.
The director asked the employees to write the report.
Presenting a literary sister as neutral everyday MSA
❌ طفق هو الفعل المعتاد لبدء نشاط في العربية المعاصرة.
Incorrect claim — طفق is not the ordinary contemporary verb for beginning an activity.
✅ بدأ الموظف يكتب الرسالة.
badaʾa l-muwaẓẓafu yaktubu r-risāla(h).
The employee began writing the message.
Key Takeaways
- بدأ can take an event subject, a noun object, في + verbal noun, or a verbal complement.
- Direct بدأ + imperfect is the central concise inchoative frame, and its imperfect remains indicative.
- Attested modern بدأ أنْ + imperfect requires the subjunctive, though conservative editors often prefer the direct frame.
- The activity subject normally matches the subject of بدأ; use a separate causative/request frame for a different actor.
- شرع، أخذ، جعل، طفق differ in complement preference and register and are not free synonyms.
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