Questions & Answers about Если я долго не ем, я начинаю слабеть.
Если literally means if, but in sentences like this it often translates naturally as when in English, especially when talking about something that regularly happens.
So:
- Если я долго не ем, я начинаю слабеть. = If I don’t eat for a long time, I start to get weak = very naturally in English, When I don’t eat for a long time, I start to get weak
Russian often uses если in general cause-and-effect statements where English might prefer when.
Because the sentence describes a general repeated situation, not one specific future event.
- ем = I eat / I am eating
- не ем = I do not eat / I am not eating
In Russian, the present tense is commonly used for habits, repeated situations, and general truths:
- Если я долго не ем, я начинаю слабеть. = If/when I go a long time without eating, I start getting weak.
It is not about one future occasion, but about what generally happens.