אם את רוצה להצטרף אלינו, תודיעי לי עד הערב.

Hebrew often drops subject pronouns when the verb already shows the person clearly. But רוצה is a present-tense form, and present tense in Hebrew does not show person; it only shows gender and number. So את is needed to tell you that the subject is you.

By contrast, תודיעי already shows you, feminine singular, so Hebrew does not need another subject pronoun there.

Several words show that:

• את = you addressed to one female
• רוצה here is understood as feminine singular
• תודיעי is the feminine singular form

So the whole sentence is speaking to one woman.

In normal modern Hebrew writing, vowel marks are usually omitted, so masculine רוֹצֶה and feminine רוֹצָה are both written רוצה.

You tell them apart from context. Here the pronoun את makes it feminine, and תודיעי also confirms that the speaker is talking to a woman.

אם את רוצה means if you want in a straightforward, natural way. Hebrew often uses the present tense here, just like English does.

אם תרצי is also possible, but it usually sounds a bit more future-oriented, tentative, or like if you’d like / if you decide you want to. So both can work, but אם את רוצה is very natural for a simple condition.

להצטרף means to join.

The prefix ל־ is the normal marker for the infinitive in Hebrew, so it often corresponds to English to:

• ללכת = to go
• לראות = to see
• להצטרף = to join

So in this sentence, רוצה להצטרף means want to join.

אלינו means to us and is made from:

• אל = to / toward
• ־ינו = us / our

So literally it is to us, but in this sentence the natural English meaning is join us.

With the verb להצטרף, Hebrew commonly uses אל when talking about joining people or a group, so להצטרף אלינו is a very natural combination.

Literally, תודיעי לי means inform me or let me know.

The verb is להודיע = to inform / to notify, and it normally takes ל־ before the person receiving the information:

• להודיע לי = to inform me
• להודיע לו = to inform him
• להודיע להם = to inform them

So תודיעי לי is let me know addressed to one woman.

In everyday Hebrew, second-person future forms are very often used to give instructions, requests, or commands.

So תודיעי לי literally looks like you will inform me, but in real usage it often means let me know.

There is also a true imperative form, הודיעי, but in modern spoken Hebrew the future form often sounds more natural and common:

• הודיעי לי = more formal/bookish
• תודיעי לי = very common in everyday speech

To one man, you would say:

אם אתה רוצה להצטרף אלינו, תודיע לי עד הערב.

The main changes are:

• את → אתה
• feminine תודיעי → masculine תודיע

Literally, עד הערב means until the evening. But in a sentence like this, it usually means by this evening or by tonight.

So it gives a deadline: the person should let the speaker know no later than the evening.

Yes. Hebrew often leaves out an explicit word for please, especially in everyday conversation. A sentence can still sound perfectly polite depending on tone, context, and wording.

Also, using the future form תודיעי לי can sound like a normal, natural request rather than a harsh command.

If you want to make it more explicitly polite, you could add בבקשה: אם את רוצה להצטרף אלינו, תודיעי לי בבקשה עד הערב.

A simple transliteration is:

Im at rotsa lehitztaref eleinu, todi'i li ad ha'erev.

A few pronunciation notes:

• צ sounds like ts
• תודיעי is pronounced with separate vowels at the end: to-di-i
• הערב is ha-erev

So a rough English-friendly pronunciation is:

im at ro-TSA le-hits-ta-REF e-LEI-nu, to-di-EE li ad ha-E-rev