בלילה ראינו ירח גדול והרבה כוכבים מעל האוהל.

בלילה is made of:

• ב־ = in / at
• לילה = night

So literally it is in the night, but in natural English we usually say at night or during the night.

A useful thing to notice: when ב־ is attached to a word that already has ה־ (the), the two often merge. So:

• ב + הלילה → בלילה

This is why you see בלילה and not ב הלילה.

Putting בלילה first sets the scene: At night, ...

Hebrew often places time expressions at the beginning of a sentence when they provide the background for the whole event. It is similar to English sentences like:

• At night, we saw ...
• Yesterday, I went ...

You could move it later in the sentence, but the opening position is very natural and common.

ראינו means we saw.

It comes from the root ר־א־ה (to see) and is the past tense, 1st person plural form.

So:

• ראיתי = I saw
• ראינו = we saw
• ראיתם = you all saw
• ראו = they saw

The ending ־נו is a very common past-tense ending for we in Hebrew.

Because in Hebrew, the verb itself usually already tells you the subject.

In ראינו, the ending ־נו already means we, so a separate pronoun like אנחנו is not necessary.

Hebrew often leaves subject pronouns out when the verb makes the subject clear.

So:

• ראינו ירח גדול = We saw a big moon
• אנחנו ראינו ירח גדול = also possible, but more emphatic, like we saw...

In Hebrew, את is used before a definite direct object.

Examples:

• ראינו את הירח = we saw the moon
• ראינו את הכוכבים = we saw the stars

But in your sentence, the objects are not marked as definite:

• ירח גדול = a big moon / non-definite moon
• הרבה כוכבים = many stars

So את is not used.

A very useful rule:

• definite object → usually את
• indefinite object → no את

In Hebrew, adjectives usually come after the noun.

So:

• ירח גדול = big moon
• כוכבים יפים = beautiful stars
• אוהל קטן = small tent

This is the normal word order in Hebrew:

• noun + adjective

English does the opposite:

• adjective + noun

So this is one of the very common differences learners need to get used to.

Adjectives in Hebrew must agree with the noun in gender and number.

ירח is:

• masculine
• singular

So the adjective must also be masculine singular:

• גדול = masculine singular

Compare:

• ירח גדול = masculine singular
• שמש גדולה = feminine singular
• כוכבים גדולים = masculine plural
• ערים גדולות = feminine plural

So גדול matches ירח correctly.

הרבה means many / a lot of here.

In this kind of structure, הרבה is commonly used before a plural noun and does not change to match the noun the way a regular adjective would.

So:

• הרבה כוכבים = many stars
• הרבה אנשים = many people
• הרבה ספרים = many books

This is different from a normal adjective. For example:

• כוכבים גדולים = big stars

Here גדולים must agree with כוכבים, but הרבה does not behave the same way in this expression.

כוכבים is the plural of כוכב (star).

Hebrew masculine plural nouns often take the ending ־ים:

• כוכב → כוכבים
• ספר → ספרים
• ילד → ילדים

Since כוכב is masculine, כוכבים is the regular masculine plural form.

That is also why, if you used an adjective with it, the adjective would normally be masculine plural too:

• כוכבים גדולים

מעל means above / over.

It often suggests position higher than something, without necessarily touching it.

• מעל האוהל = above the tent

By contrast, על can mean on, on top of, or sometimes over, depending on context.

So a simple distinction is:

• על = on / on top of / over
• מעל = above

If the stars are in the sky higher than the tent, מעל is a very natural choice.

אוהל means tent.

האוהל is:

• ה־ = the
• אוהל = tent

So האוהל means the tent.

This is the regular Hebrew definite article:

• ספר = a book
• הספר = the book
• אוהל = a tent
• האוהל = the tent

Since the sentence refers to a specific tent, Hebrew uses the definite article here.

Because מעל is a full preposition word, while ב־ is a one-letter prefix preposition.

With prefix prepositions like ב־, ל־, and כ־, Hebrew often merges them with ה־:

• ב + הבית → בבית
• ל + הילד → לילד
• כ + המלך → כמלך

But מעל stays separate:

• מעל האוהל
• not a merged single form

So מעל האוהל is exactly what you would expect.

Yes, very natural.

The structure is:

• בלילה = time/background
• ראינו = verb
• ירח גדול והרבה כוכבים = what was seen
• מעל האוהל = location

So the sentence flows naturally as: At night, we saw a big moon and many stars above the tent.

Hebrew word order is fairly flexible, but this version sounds normal and clear. Starting with the time phrase is especially common when setting a scene.