אם תחנת הדלק קרובה, אפשר ללכת ברגל.

אם means if. It introduces a condition:

• אם תחנת הדלק קרובה = If the gas station is close

So the whole sentence has the structure If X, then Y.

Because קרובה is an adjective meaning close/near, not a noun. In Hebrew, predicate adjectives usually do not take the definite article.

Compare:

• תחנת הדלק הקרובה = the nearby gas station / the close gas station
  
  • here the adjective is directly describing the noun, so it takes ה
• תחנת הדלק קרובה = the gas station is close
  
  • here קרובה is part of the predicate, so there is no ה

This is similar to the difference between:

• the big house
• the house is big

Because תחנת הדלק is a feminine singular noun, and the adjective must agree with it.

• masculine singular: קרוב
• feminine singular: קרובה
• masculine plural: קרובים
• feminine plural: קרובות

Since תחנה is feminine, we use קרובה.

Yes, literally it is a construct phrase:

• תחנת = station of ...
• הדלק = the fuel / the gas

So תחנת הדלק literally means the station of the fuel, but naturally it means the gas station or the petrol station.

This is a very common Hebrew structure called סמיכות (construct state).

Because תחנה becomes תחנת in the construct state.

Base form:

• תחנה = station

Construct form:

• תחנת = station of ...

So:

• תחנה = a station
• תחנת דלק = a gas station
• תחנת הרכבת = the train station

This change is normal for many feminine nouns ending in ־ה.

אפשר means it is possible, one can, or it’s possible to.

In this sentence:

• אפשר ללכת ברגל = it’s possible to walk / you can walk

It is an impersonal expression. There is no explicit subject like you or we.

Hebrew often uses אפשר + infinitive to express possibility or permission in a general way.

Because אפשר is commonly used impersonally, especially in general statements.

• אפשר ללכת ברגל = You can walk / It’s possible to walk
• אפשר להיכנס? = May I come in?
• אפשר לראות? = Can I see?

You do not need a specific subject. It sounds natural and general, like saying one can or it’s possible to in English.

Also, אפשר does not change here to match person or number.

ללכת is the infinitive of the verb הלך (to go / to walk).

The infinitive in Hebrew often starts with ל־, which usually corresponds to English to:

• ללכת = to go / to walk
• לאכול = to eat
• לראות = to see

After אפשר, Hebrew normally uses an infinitive:

• אפשר ללכת
• אפשר לאכול
• אפשר לחכות

By itself, ללכת usually means to go. But in this sentence it is followed by ברגל, which means on foot.

So:

• ללכת = to go
• ללכת ברגל = to go on foot = to walk

That combination makes the meaning specifically walk.

ברגל literally means by foot or on foot.

It is made of:

• ב־ = in / by / with
• רגל = foot / leg

Together, ברגל means on foot.

So:

• אפשר ללכת ברגל = you can walk / it’s possible to go on foot

Hebrew uses the singular in this expression: ברגל = on foot.

English does something similar: we say on foot, not on feet.

So even though walking normally uses two feet, the idiomatic Hebrew expression is singular.

Yes. In the present tense, Hebrew usually does not use a separate word for is/are.

So:

• תחנת הדלק קרובה literally looks like the gas station close
• but it means the gas station is close

This is normal in Hebrew present-tense sentences.

In past or future, Hebrew would use forms of היה:

• תחנת הדלק הייתה קרובה = the gas station was close
• תחנת הדלק תהיה קרובה = the gas station will be close

Yes, often it can. Hebrew punctuation can be a bit flexible in short sentences.

So both of these are possible:

• אם תחנת הדלק קרובה, אפשר ללכת ברגל.
• אם תחנת הדלק קרובה אפשר ללכת ברגל.

The comma helps readability by clearly separating the if-clause from the main clause.

The most natural meaning is If the gas station is close, you can walk there / it’s possible to go on foot.

Depending on context, אפשר can sometimes sound like:

• it’s possible to
• you can
• it’s okay to

But here the strongest sense is practical possibility: if it’s nearby, walking is a reasonable option.

Yes, but it must still agree with the noun it describes.

For example:

• הבית קרוב = the house is close
  (בית is masculine singular)
• התחנה קרובה = the station is close
  (תחנה is feminine singular)

So קרוב is not wrong in general; it would just be wrong with תחנת הדלק, because that noun phrase is feminine singular.

The structure is:

• אם + clause, main clause

More specifically:

• אם תחנת הדלק קרובה = if the gas station is close
• אפשר ללכת ברגל = it’s possible to walk / you can walk

So the full pattern is:

If [condition], [result].

This order is very common in Hebrew, just as in English.