Questions & Answers about אני רוצה לדעת מראש אם הפגישה תתחיל בזמן.
אני רוצה means I want.
In Hebrew, subject pronouns like אני (I) are often optional because the verb form already shows the person. So you could also say:
רוצה לדעת מראש אם הפגישה תתחיל בזמן.
That can sound natural in conversation if the subject is already clear from context.
However, אני רוצה is very normal and often used for clarity or emphasis. For learners, including אני is usually the safest choice.