אם אני לא מבינה את התרגיל, אני נעזרת במורה.

Because the speaker is female.

In Hebrew, verbs in the present tense agree with the subject in gender and number. Since the subject is אני and the speaker is understood to be a woman, the verbs appear in the feminine singular form:

• מבינה = understanding / understands (feminine singular)
• נעזרת = getting help / relying on (feminine singular)

If the speaker were male, the sentence would be:

אם אני לא מבין את התרגיל, אני נעזר במורה.

אם means if.

It introduces a condition:

• אם אני לא מבינה את התרגיל = If I don’t understand the exercise

So the sentence has the structure:

• If X, then Y
• אם ... , ...

This is a very common way to build conditional sentences in Hebrew.

את is the marker of a definite direct object in Hebrew.

Here, התרגיל means the exercise, which is definite because of ה־ (the). Since it is the direct object of מבינה (understand), Hebrew uses את before it:

• אני מבינה את התרגיל = I understand the exercise

Important points:

• את does not mean you here
• It usually is not translated into English
• It appears before a definite direct object

Compare:

• אני מבינה תרגיל = I understand an exercise
• אני מבינה את התרגיל = I understand the exercise

Because the verb נעזרת does not take a direct object here. It takes the preposition ב־.

The verb להיעזר means something like:

• to make use of
• to get help from
• to rely on

So Hebrew says:

• להיעזר במורה = to rely on / get help from the teacher

That is why you get:

• אני נעזרת במורה

and not:

• אני נעזרת את המורה ❌

So במורה is required by the verb.

This is because Hebrew prepositions do not always match English prepositions word-for-word.

The verb להיעזר specifically uses ב־, even when English would say:

• with the help of
• from
• by relying on

So although ב־ often means in or with, here it is just the normal preposition that goes with this verb.

Think of it as a fixed pattern:

• להיעזר במשהו / במישהו = to use / rely on / get help from something or someone

Because the preposition ב־ combines with the definite article ה־.

So:

• ב + המורה becomes במורה

This is a very common contraction in Hebrew.

Similar examples:

• בבית = in the house (ב + הבית)
• בספר = in the book (ב + הספר)

So במורה is really:

• ב + המורה = with/from the teacher

No, they are different.

• עוזרת comes from לעזור = to help
• נעזרת comes from להיעזר = to get help / make use of help / rely on

So:

• אני עוזרת למורה = I help the teacher
• אני נעזרת במורה = I get help from the teacher / I rely on the teacher

This is a very important distinction.

Even though both are related to the root ע-ז-ר (help), they mean different things.

In this form, it sounds like a general/habitual present:

• If I don’t understand the exercise, I use the teacher’s help / I ask the teacher for help

In other words, this is what the speaker generally does.

Hebrew often uses the present tense for repeated or habitual actions like this.

If you wanted a more clearly future meaning, you could say:

• אם אני לא אבין את התרגיל, איעזר במורה.
• If I don’t understand the exercise, I’ll rely on the teacher / get help from the teacher.

So the original sentence is best understood as a general rule or usual behavior.

The comma separates the if-clause from the main clause:

• אם אני לא מבינה את התרגיל, = if I don’t understand the exercise,
• אני נעזרת במורה. = I rely on the teacher / get help from the teacher.

This is standard punctuation when the conditional part comes first.

Hebrew punctuation here works much like English punctuation.

Yes. Hebrew allows some flexibility.

For example, you could also say:

• אני נעזרת במורה אם אני לא מבינה את התרגיל.

This means essentially the same thing:

• I rely on the teacher if I don’t understand the exercise.

Putting the אם clause first often sounds a little more natural when introducing the condition, but both are possible.

תרגיל means exercise.

With ה־, it becomes:

• התרגיל = the exercise

So the structure is:

• תרגיל = an exercise / exercise
• התרגיל = the exercise

This is why את appears before it: it is a definite direct object.

Yes. While אני נעזרת במורה is correct, Hebrew speakers might also say things like:

• אני מבקשת עזרה מהמורה = I ask the teacher for help
• המורה עוזרת לי = the teacher helps me
• אני פונה למורה = I turn to the teacher

But אני נעזרת במורה is still perfectly good Hebrew. It simply emphasizes that the speaker uses the teacher as a source of help or relies on the teacher.