Questions & Answers about לפני שאני קונה חולצה, אני תמיד מודדת אותה.
Because לפני ש־ is the normal way to say before when it is followed by a full clause with a subject and a verb.
So:
- לפני שאני קונה = before I buy
- literally, it is something like before that I buy
The ש attaches directly to אני, so you get שאני.
Both are present-tense forms in Hebrew.
Hebrew often uses the present tense for:
- habitual actions
- general truths
- repeated situations
That is why לפני שאני קונה חולצה, אני תמיד מודדת אותה works well for whenever I buy a shirt, I always try it on first.
In other words, this is not about one specific future purchase. It is about a habit.