אני צריך להביא עוד כיסא אחד, כי יש כמה אורחים הערב.

In Hebrew, צריך / צריכה is often used like an adjective or participle meaning need / need to / have to, rather than like a regular fully inflected verb.

So:

• אני צריך להביא = I need to bring / I have to bring
• literally, something like I am needing to bring

The word צריך agrees with the speaker’s gender:

• אני צריך = said by a male
• אני צריכה = said by a female

So the sentence as written sounds like it is spoken by a male speaker.

It would be:

אני צריכה להביא עוד כיסא אחד, כי יש כמה אורחים הערב.

Only צריך changes to צריכה.

That is because אני itself does not show gender, but adjectives/participles used with it often do.

After צריך / צריכה, Hebrew normally uses the infinitive form of the next verb.

So:

• צריך להביא = need to bring
• not צריך מביא

This is similar to English need to bring, where to bring is an infinitive.

Examples:

• אני צריך ללכת = I need to go
• היא צריכה לקנות = She needs to buy
• אנחנו צריכים ללמוד = We need to study

So להביא is the correct form after צריך.

Here להביא means to bring.

In Hebrew:

• להביא = to bring
• לקחת = to take

The difference is similar to English: bring usually means moving something toward the place/situation being discussed.

So in this sentence, the speaker is saying they need to bring another chair, presumably to where the guests will be.

Good question. עוד כיסא אחד means one more chair.

Breakdown:

• עוד = more / another
• כיסא אחד = one chair

Together:

• עוד כיסא אחד = one more chair

In everyday Hebrew, people may also simply say:

• עוד כיסא = another chair / one more chair

Adding אחד makes the number explicit. It emphasizes that the speaker needs exactly one additional chair.

So:

• אני צריך להביא עוד כיסא = I need to bring another chair
• אני צריך להביא עוד כיסא אחד = I need to bring one more chair

Both are natural; the version with אחד is a little more specific or emphatic.

Because כיסא is a masculine noun.

In Hebrew, numbers must agree with the gender of the noun. For one:

• masculine: אחד
• feminine: אחת

So:

• כיסא אחד = one chair
• מנורה אחת = one lamp

Since כיסא is masculine, אחד is correct.

Because the sentence is not talking about the chair or the guests in a definite sense.

Compare:

• כיסא = a chair
• הכיסא = the chair

And:

• אורחים = guests
• האורחים = the guests

In this sentence:

• עוד כיסא אחד = one more chair
• כמה אורחים = some / several guests

These are indefinite, so there is no ה־.

Here כמה means some, several, or a few.

So:

• כמה אורחים = a few guests / several guests / some guests

It does not necessarily ask a question here. Hebrew כמה can be:

1. interrogative: How many?
2. indefinite: some / several / a few

In this sentence it is the second meaning.

Examples:

• כמה תלמידים הגיעו = Several students arrived
• כמה אנשים מחכים = A few people are waiting

יש means there is / there are or have/has in some contexts.

Here it is existential:

• יש כמה אורחים = There are a few guests

So the clause:

כי יש כמה אורחים הערב means because there are a few guests tonight / this evening

Hebrew often uses יש where English uses there is / there are.

Examples:

• יש זמן = There is time
• יש בעיה = There is a problem
• יש אורחים בבית = There are guests at home

כי means because and introduces the reason.

So the structure is:

• אני צריך להביא עוד כיסא אחד = main statement
• כי יש כמה אורחים הערב = reason

This is very similar to English:

• I need to bring one more chair, because there are a few guests tonight.

Hebrew uses כי very commonly for because.

Literally, הערב is the evening, but in many everyday contexts it means this evening or tonight.

So here:

• הערב = tonight / this evening

That is why the sentence sounds natural as:

• because there are a few guests tonight

This kind of time expression is common in Hebrew:

• היום = today
• הלילה = tonight / at night
• הבוקר = this morning / in the morning
• הערב = this evening / tonight

Hebrew word order is fairly flexible, and time expressions often come at the end.

So:

• כי יש כמה אורחים הערב = because there are a few guests tonight

is completely natural.

You could also hear:

• כי הערב יש כמה אורחים
• כי יש הערב כמה אורחים

But the original version is very normal and smooth.

Putting הערב at the end often sounds neutral and natural, just like English tonight at the end.

אורחים is the masculine plural of אורח (guest).

• singular: אורח
• plural: אורחים

The ending -ים is the regular masculine plural ending in Hebrew.

So:

• ילד → ילדים = boy → boys
• ספר → ספרים = book → books
• אורח → אורחים = guest → guests

Since כמה is referring to more than one guest, the plural אורחים is needed.

Sometimes yes, but it would sound less complete here.

Hebrew often drops subject pronouns when the verb already shows the subject clearly. But in this sentence, צריך by itself does not clearly show person the way a past or future verb often does.

So:

• אני צריך להביא... = clear and natural
• צריך להביא... = possible in some contexts, but more context-dependent; it can sound more like one needs to bring... or I need to bring... depending on situation

For a learner, it is safest to keep אני here.

The standard modern spelling is כיסא.

You may also encounter כסא, especially in older texts or less formal spelling traditions, but כיסא is the usual modern spelling you should learn first.

So in modern Hebrew:

• כיסא = chair

Both refer to the same word.