אני רוצה להצליח במבחן, ולכן אני לומד בספרייה גם בערב.

Because after רוצה (want), Hebrew normally uses an infinitive, just like English uses to + verb.

• אני רוצה = I want
• להצליח = to succeed / to do well

So:

• אני רוצה להצליח = I want to succeed

The ל־ at the beginning of להצליח is part of the infinitive form and usually corresponds to English to.

Literally, it is to succeed in the exam/test, but in natural English it often means:

• to do well on the exam
• to pass the exam (depending on context)

The preposition ב־ is used with להצליח in Hebrew:

• להצליח ב... = to succeed in / at ...

So במבחן is the normal Hebrew way to say in/on the exam after להצליח.

The sentence is masculine because of לומד.

• אני לומד = I study / I am studying (spoken by a male)
• אני לומדת = I study / I am studying (spoken by a female)

The word רוצה does not show the difference in spelling here, because both masculine and feminine singular are written רוצה in unpointed Hebrew. But they are pronounced differently:

• masculine: rotze
• feminine: rotza

So the full feminine version would be:

אני רוצה להצליח במבחן, ולכן אני לומדת בספרייה גם בערב.

Hebrew often allows subject pronouns to be omitted when the meaning is clear, but they can also be included for clarity, balance, or emphasis.

So both of these are possible:

• אני רוצה להצליח במבחן, ולכן לומד בספרייה גם בערב.
• אני רוצה להצליח במבחן, ולכן אני לומד בספרייה גם בערב.

The version with the second אני sounds very natural and clear. Repeating it is not wrong or unusual.

ולכן means and therefore, and so, or therefore.

It is made of:

• ו־ = and
• לכן = therefore / so

So:

• ולכן אני לומד... = and therefore I study... / so I study...

Compared with אז:

• אז is often more like so in everyday speech
• לכן is a bit more formal or explicit, closer to therefore

Both can work, but ולכן sounds a little more structured.

Because Hebrew prepositions are usually attached directly to the following word.

Here:

• ב־ = in / at
• ספרייה = library

So:

• בספרייה = in the library / at the library

This is completely normal in Hebrew. Very common attached prepositions include:

• ב־ = in, at
• ל־ = to, for
• כ־ = as, like
• מ־ = from

In Hebrew, the is usually the prefix ה־, but after certain prepositions such as ב־, ל־, and כ־, it often merges into the preposition.

So instead of writing something like ב + ה + ספרייה as separate parts, Hebrew combines them.

That means forms like these can correspond to:

• בספרייה = in the library
• במבחן = in/on the exam
• בערב = in the evening

In unpointed modern Hebrew writing, these forms can sometimes also look the same as the indefinite version, so context helps decide the exact meaning. In this sentence, the natural translation is usually definite: the exam, the library, the evening.

It can mean both.

Hebrew present tense often covers both:

• simple present: I study
• present progressive: I am studying

So:

• אני לומד בספרייה can mean I study in the library
• or I am studying in the library

Context tells you which one sounds better in English. In this sentence, because it describes a regular effort connected to wanting to do well on an exam, I study in the library is very natural.

Because גם usually goes before the word or phrase it is emphasizing.

Here:

• גם בערב = also in the evening / even in the evening

This tells us that the studying happens not only at other times, but also in the evening.

Compare:

• אני לומד גם בספרייה = I also study in the library
• אני גם לומד בספרייה = I also study in the library / I too study in the library
• אני לומד בספרייה גם בערב = I study in the library also in the evening

So the position of גם helps show what is being added.

Yes, it is natural.

The sentence is built like this:

• אני רוצה להצליח במבחן = I want to succeed in the exam
• ולכן אני לומד בספרייה גם בערב = therefore / so I study in the library also in the evening

The comma before ולכן is normal because the sentence has two connected clauses:

1. a reason or motivation
2. a result

So the overall structure is very similar to English:

• I want to do well on the exam, so I study in the library in the evening too.

A simple pronunciation guide is:

Ani rotze lehatzliach ba-mivchan, velakhen ani lomed ba-sifriya gam ba-erev.

If the speaker is female, it would be:

Ani rotza lehatzliach ba-mivchan, velakhen ani lomedet ba-sifriya gam ba-erev.

A few notes:

• ח in להצליח is a throat sound with no exact English equivalent.
• כ in ולכן here sounds like the ch in German Bach or Scottish loch for many speakers, though some modern speakers pronounce it more softly.
• Stress is usually toward the end of the word:
  • lehatzLIach
  • mivCHAN
  • sifriYA
  • eREV