Causing an Effect: باعث شدن
To express that one action or condition causes a specific outcome, Farsi uses the compound verb باعث شدن (literally: "to become the cause").
When you want to connect a cause to an action-based effect (e.g., "causes you to get injured"), you follow باعث شدن with the conjunction که (that) and a clausal complement. Because the outcome is dependent on the cause, the verb in this resulting clause must take the subjunctive mood.
[Cause] + باعث میشود که + [Effect Clause with Subjunctive Verb]
Let's look at this structure using vocabulary related to office ergonomics and posture:
| Slouching on the chair causes your spine to get injured. | قوز کردن روی صندلی باعث میشود که ستون فقرات شما آسیب ببیند.ghuz kardan ruye sandali bâ'es mishavad ke sotun faghârât shomâ âsib bebinad. |
| Ergonomic tools cause this problem to disappear. | وسایل ارگونومیک باعث میشوند که این مشکل از بین برود.vasâyel-e ergonomik bâ'es mishavand ke in moshkel az beyn beravad. |
| An ergonomic chair causes you to sit correctly. | یک صندلی ارگونومیک باعث میشود که درست بنشینید.yek sandali ergonomik bâ'es mishavad ke dorost beneshinid. |
Past Tense Causes
If the causing event happened in the past, simply conjugate باعث شدن in the past tense (such as باعث شد or باعث شدند).
Even when the cause is in the past, the resulting verb in the که clause generally remains in the present subjunctive, as it describes the action that was triggered.
| Working with this mouse caused me to feel strain and tingling. | کار کردن با این موس باعث شد که کشیدگی و گزگز حس کنم.kâr kardan bâ in mus bâ'es shod ke keshidegi va gazgaz hess konam. |
| Correcting the chair's backrest caused him to sit comfortably. | اصلاح کردن تکیهگاه صندلی باعث شد که او راحت بنشیند.eslâh kardan-e tekyegâh-e sandali bâ'es shod ke u râhat beneshinad. |
Giving Advice and Asking Questions
You will often see this structure combined with commands, questions, and statements about prevention to discuss the consequences of good and bad habits. Notice how the core grammar remains exactly the same:
| Do not slouch, because it causes you to develop chronic pain. | قوز نکنید، زیرا باعث میشود که درد مزمن پیدا کنید.quz nakonid, zirâ bâ'es mishavad ke dard-e mozmen peydâ konid. |
| Did slouching cause anyone to get a muscle strain? | آیا قوز کردن باعث شد که کسی کشیدگی عضله پیدا کند؟âyâ ghoz kardan bâ'es shod ke kasi keshidegi azale peydâ konad? |
| A good backrest causes you to prevent back pain. | یک تکیهگاه خوب باعث میشود که شما از درد کمر پیشگیری کنید.yek tekye-gâh-e khub bâ'es mishavad ke shomâ az dard-e kamar pishgiri konid |