Breakdown of Когда я ем слишком быстро, у меня начинает болеть живот.
Questions & Answers about Когда я ем слишком быстро, у меня начинает болеть живот.
In Russian, когда + present tense is the normal way to talk about repeated or habitual situations, just like English when + present.
- Когда я ем слишком быстро, у меня начинает болеть живот.
= When I eat too fast, my stomach starts to hurt (whenever that happens).
Both verbs ем and начинает болеть are in the present tense, but the whole sentence describes what typically happens. This is standard Russian and sounds natural. You would not normally use a future tense here for this kind of “general truth” statement.
You can drop я, and Russians often do when the subject is clear from the verb ending:
- Когда ем слишком быстро, у меня начинает болеть живот.
This is grammatically correct and colloquial. However:
- Keeping я (Когда я ем…) is also completely correct.
- Including the pronoun is slightly more explicit and is often preferred in learner materials and in careful speech.
- In neutral written Russian, using я here probably feels a bit more natural than omitting it, but both are fine.
So both forms are OK; the difference is mostly stylistic.