היא לומדת בתיכון.

Because the subject is היא, which is she. In the Hebrew present tense, verbs agree with gender and number.

For the verb ללמוד meaning to study, the present-tense forms are:

• לומד = masculine singular
• לומדת = feminine singular
• לומדים = masculine plural
• לומדות = feminine plural

So היא לומדת means she studies or she is studying.

In Hebrew, the present tense usually does not use a separate word for am / is / are.

So:

• היא לומדת = she studies / she is studying
• not something like היא היא לומדת

This is very normal in Hebrew. The verb itself carries the present-time meaning.

It can mean both. Hebrew present tense often covers both the simple present and the present progressive in English.

So היא לומדת can mean:

• she studies
• she is studying

The exact meaning depends on context.

בתיכון is made of:

• ב־ = in / at
• תיכון = high school

So it literally means in high school or at a high school.

In this sentence, the natural meaning is in high school or at high school.

In Hebrew, short prepositions are often attached directly to the following word.

So instead of writing them separately, Hebrew usually writes:

• בבית = in a house / in the house
• בספר = in a book / in the book
• בתיכון = in high school / at the high school

This is completely standard.

Without vowel marks, the spelling בתיכון can represent either:

• בְּתיכון = in a high school
• בַּתיכון = in the high school

In everyday unpointed Hebrew, both are written the same way.

In this sentence, the most natural understanding is the general idea in high school or at high school, not necessarily a specific school building already mentioned.

Yes. Here תיכון is a noun meaning high school.

So the structure is:

• היא = subject
• לומדת = verb
• בתיכון = prepositional phrase telling where she studies

The dictionary form is ללמוד, meaning to study.

לומדת is the feminine singular present-tense form of that verb.

A learner will often want to connect them like this:

• dictionary form: ללמוד
• present masculine singular: לומד
• present feminine singular: לומדת

It is pronounced approximately:

hi lo-ME-det ba-ti-KHON
or sometimes hi lo-ME-det be-ti-KHON, depending on how בתיכון is understood and pronounced in context.

A simple learner-friendly pronunciation is:

hee loh-MEH-det bah-tee-KHON

The stress is usually on the last syllable of תיכון and on the middle syllable of לומדת.

Yes, but it means something slightly different.

• היא לומדת בתיכון = she studies in high school / she attends high school
• היא בתיכון = she is in high school

The second sentence has no verb of studying. It simply states her school level or where she is educationally.

No, this is a very normal Hebrew word order:

• היא = subject
• לומדת = verb
• בתיכון = place or setting

So the sentence structure is straightforward and natural.

Yes. Hebrew present tense often covers both:

• something happening now
• a regular or ongoing situation

So היא לומדת בתיכון can mean:

• she is studying in high school
• she attends high school
• she studies at a high school

Context tells you which one is intended.