קשה לי להתרכז כששני אנשים מדברים לידי ומפריעים לי.

קשה לי is a very common Hebrew way to say it is hard for me.

Literally:

• קשה = hard / difficult
• לי = to me / for me

So קשה לי להתרכז means It’s hard for me to concentrate.

Hebrew often uses this kind of structure where English would use a full verb:

• קשה לי להבין = It’s hard for me to understand
• קל לי לקרוא עברית = It’s easy for me to read Hebrew

You can also say אני מתקשה להתרכז, which means I have difficulty concentrating or I’m struggling to concentrate, but קשה לי is extremely natural and common.

להתרכז means to concentrate or to focus.

It is the infinitive form, like to concentrate in English.

The beginning להת־ is part of the verb pattern. This verb belongs to the התפעל pattern, which often has the form:

• past / present / future forms built from a root
• infinitive often beginning with להת־

In this case:

• root: roughly ר־כ־ז related to focus/center
• להתרכז = to concentrate

So in קשה לי להתרכז, the infinitive comes after it is hard for me:

• קשה לי + infinitive
• קשה לי לישון = It’s hard for me to sleep
• קשה לי לעבוד = It’s hard for me to work

Because כש here means when.

So:

• כש = when
• שני אנשים = two people

Together:

• כששני אנשים = when two people...

The two ש sounds meet:

• כש
  • שני
• written together as כששני

This is completely normal in Hebrew spelling. It is not the same as כשני.

Important difference:

• כששני אנשים מדברים... = when two people are talking...
• כשני אנשים by itself can mean about two people / approximately two people in some contexts, so it would be a different structure.

Because Hebrew numbers agree with gender, and אנשים is a masculine noun.

For the number two:

• masculine: שני
• feminine: שתי

So:

• שני אנשים = two people / two men / two persons
• שתי נשים = two women
• שני ספרים = two books
• שתי מכוניות = two cars

Even though people can refer to mixed or unspecified people, the noun אנשים is grammatically masculine, so שני is the correct form.

מדברים is the masculine plural present-tense form of לדבר = to speak / to talk.

It can mean either:

• speak
• are speaking / talking

Hebrew present tense often covers both the simple present and the present progressive, depending on context.

So here:

• כששני אנשים מדברים לידי = when two people are talking next to me

Because the context is about something happening around the speaker right now or in general, English usually translates it as are talking.

Because its subject is שני אנשים = two people, and אנשים is grammatically masculine plural.

So the verb must match:

• singular masculine: מדבר
• singular feminine: מדברת
• plural masculine: מדברים
• plural feminine: מדברות

Since the subject is plural and masculine:

• שני אנשים מדברים

If the subject were feminine, for example שתי נשים, you would say:

• כששתי נשים מדברות...

לידי means next to me / beside me / by my side.

It is built from:

• ליד = next to / beside
• ־י = my

So:

• לידי = next to me
• לידך = next to you
• לידו = next to him
• לידה = next to her

In this sentence, כששני אנשים מדברים לידי means:

• when two people are talking next to me

This is more natural here than a literal at my side in English.

מפריעים לי means they disturb me / they bother me / they interfere with me.

Breakdown:

• מפריעים = disturbing / bothering / interfering
• לי = me / to me

The לי is repeated because it belongs separately to two different parts of the sentence:

1. קשה לי להתרכז = it is hard for me to concentrate
2. ומפריעים לי = and they disturb me

So even though English might avoid repetition sometimes, Hebrew naturally repeats it because each clause needs its own object or complement.

Without the second לי, the meaning would be incomplete or different.

The ו means and.

So:

• מפריעים לי = they disturb me
• ומפריעים לי = and they disturb me

The sentence has two actions done by the two people:

1. מדברים לידי = they are talking next to me
2. ומפריעים לי = and they are disturbing me

Hebrew commonly attaches ו־ directly to the next word instead of writing a separate word for and.

Yes. The verb להפריע has a range of meanings depending on context:

• to disturb
• to bother
• to interrupt
• to interfere
• to get in the way

In this sentence, מפריעים לי most naturally means:

• they’re bothering me
• they’re disturbing me

Because the speaker is trying to concentrate, the idea is that the two people talking nearby are making concentration difficult.

Because Hebrew does not need a dummy subject like English it in this kind of sentence.

English says:

• It is hard for me to concentrate

But Hebrew simply says:

• קשה לי להתרכז
• literally: hard for me to concentrate

This is very common in Hebrew:

• חשוב לי ללמוד = It’s important for me to study
• נעים לי להיות כאן = It’s pleasant for me to be here
• מוזר לי לשמוע את זה = It feels strange to me to hear that

So the English it is just something English grammar requires, not Hebrew.

The sentence is:

קשה לי להתרכז כששני אנשים מדברים לידי ומפריעים לי.

A helpful breakdown is:

• קשה לי להתרכז = It’s hard for me to concentrate
• כש = when
• שני אנשים = two people
• מדברים לידי = are talking next to me
• ומפריעים לי = and disturbing me

So the overall structure is:

[It’s hard for me to do X] + [when Y happens]

More literally:

• Hard for me to concentrate when two people are talking next to me and disturbing me

This word order is very natural in Hebrew.

A simple pronunciation guide is:

Ka-sheh li le-hit-ra-kez kshe-shney a-na-shim medab-rim le-ya-di u-maf-ri-im li.

A few notes:

• קשה = ka-SHEH
• להתרכז = le-hit-ra-KEZ
• כששני sounds like kshe-shney
• אנשים = a-na-SHIM
• מדברים = medab-RIM
• לידי = le-ya-DI
• מפריעים = maf-ri-IM

The stress is usually near the end in many of these words.

Yes. This sentence is already natural, but here are a few close alternatives:

• קשה לי להתרכז כשיש לידי שני אנשים שמדברים ומפריעים לי.
  It’s hard for me to concentrate when there are two people next to me talking and bothering me.

• אני לא מצליח להתרכז כששני אנשים מדברים לידי.
  I can’t manage to concentrate when two people are talking next to me.

• אני מתקשה להתרכז כששני אנשים מדברים לידי.
  I have trouble concentrating when two people are talking next to me.

Your original sentence is clear and idiomatic.