When we talk about studying, it's important to use the word "учиться" (which means "to study") together with "в" (which means "at" or "in") when we mention schools or universities.

Here are some key phrases you can use:

1. Я учусь в университете.
   (I study at a university.)

2. Он учится в школе.
   (He studies at a school.)

3. Она учится на врача.
   (She studies to become a doctor.)

Next, let’s see how to change "учиться" based on who is studying:

• Я учусь.
  (I study.)

• Ты учишься.
  (You study, informal.)

• Он/Она учится.
  (He/She studies.)

• Мы учимся.
  (We study.)

• Вы учитесь.
  (You study, formal or when talking to more than one person.)

• Они учатся.
  (They study.)

When you talk about studying right now or making future plans, remember to use "учиться" in the present tense with the right subject pronoun.