הילדים נהנים מאוד בפארק.

Because the prefix ה־ at the beginning of a noun is the Hebrew definite article, equivalent to the.

• ילדים = children / boys
• הילדים = the children

So הילדים is literally the children.

Yes, ילדים is grammatically masculine plural.

In Hebrew:

• ילדים = boys / children (masculine plural, and often used for a mixed group)
• ילדות = girls (feminine plural)

So הילדים can mean:

• a group of boys, or
• a mixed group of children

If the group were all girls, you would usually say הילדות.

Because נהנים agrees with הילדים, which is masculine plural.

Hebrew verbs in the present tense match the subject in gender and number. Since הילדים is masculine plural, the verb also appears in the masculine plural form:

• נהנה = enjoying (masculine singular)
• נהנית = enjoying (feminine singular)
• נהנים = enjoying (masculine plural)
• נהנות = enjoying (feminine plural)

So:

• הילדים נהנים = the children are enjoying
• הילדות נהנות = the girls are enjoying

The dictionary form is ליהנות, meaning to enjoy.

So:

• ליהנות = to enjoy
• נהנים = enjoying / enjoy (masculine plural present form)

A learner will often see Hebrew verbs in the dictionary as the infinitive, so if you want to look up נהנים, you should look for ליהנות.

Because Hebrew present tense usually does not use a separate word for am / is / are.

In English, you say:

• The children are enjoying...

In Hebrew, the present-tense verb form itself carries that meaning:

• הילדים נהנים...

So נהנים already means something like are enjoying / enjoy depending on context.

It can mean either one, depending on context.

Hebrew present tense is often less specific than English. So הילדים נהנים מאוד בפארק could be understood as:

• The children enjoy the park very much
• The children are enjoying themselves very much in the park

Usually the situation or the translation shown to the learner tells you which English version fits best.

מאוד means very.

Here it strengthens the idea of enjoying:

• נהנים = enjoying
• נהנים מאוד = enjoying very much

So מאוד works as an intensifier, similar to very or very much in English.

Because Hebrew often attaches prepositions directly to the following noun.

Here:

• ב־ = in / at
• פארק = park

So:

• בפארק = in the park / at the park / in a park

This is very normal in Hebrew. Short prepositions like ב־ (in), ל־ (to), and כ־ (as/like) are commonly written as prefixes.

Without vowel marks, it can potentially be understood either way in writing, and context usually tells you which one is meant.

Why?

• בפארק can represent ב + פארק = in a park
• and it can also represent ב + ה + פארק = in the park, where the ה of the is absorbed after the preposition

In normal everyday Hebrew spelling, both look the same: בפארק.

So the meaning depends on context or on the translation you were given.

Because in Hebrew, מאוד commonly comes after the word or phrase it modifies.

So Hebrew naturally says:

• נהנים מאוד = enjoying very much

That word order is much more natural than placing מאוד before the verb.

Sometimes yes, but הילדים נהנים מאוד בפארק is a very natural neutral order.

This order is:

• subject: הילדים
• verb: נהנים
• intensifier: מאוד
• place phrase: בפארק

You may hear other orders in real Hebrew for emphasis, but this sentence is a standard, straightforward way to say it.

A common pronunciation would be:

ha-ye-la-dim ne-he-nim me-od ba-park

Very roughly for an English speaker:

• הילדים = ha-yeh-la-DEEM
• נהנים = neh-heh-NEEM
• מאוד = meh-OD
• בפארק = ba-PARK

So the full sentence sounds approximately like:

ha-yeh-la-DEEM neh-heh-NEEM meh-OD ba-PARK