פינוי פסולת הבניין מתחיל אחרי ההריסה.

It has three main parts:

• פינוי פסולת הבניין — the subject noun phrase
• מתחיל — the verb, begins / starts
• אחרי ההריסה — a time phrase, after the demolition

So the structure is basically:

[subject] + [begins] + [after X]

Hebrew often builds technical or formal sentences this way.

No. פינוי is a noun, not a finite verb.

It is a verbal noun meaning something like:

• removal
• clearing
• evacuation

So פינוי פסולת הבניין means the removal of the building debris/waste.

If it were a finite verb, you would expect a form like מפנים, מפנה, and so on, depending on the subject.

This is a construct chain in Hebrew.

Hebrew often expresses X of Y by putting two nouns together:

• פסולת הבניין = the building’s waste/debris
• literally: waste of the building

So instead of using a separate word for of, Hebrew often just places the nouns next to each other.

In this sentence, the chain is actually larger:

• פינוי פסולת הבניין

That means:

• the removal of the building debris
• literally: removal of waste of the building

Because in a construct chain, definiteness is usually marked only on the last noun.

So:

• פסולת הבניין = the building’s debris
• פינוי פסולת הבניין = the removal of the building’s debris

Even though פינוי and פסולת do not have ה־, the whole chain is understood as definite because the final noun, הבניין, is definite.

This is very normal Hebrew behavior.

It could use של, but the construct chain is more natural here, especially in formal, technical, or written language.

Compare:

• פסולת הבניין — compact, standard
• פסולת של הבניין — possible, but less tight and usually less natural here

Likewise:

• פינוי פסולת הבניין — very natural
• פינוי של פסולת הבניין — possible, but heavier

So the sentence uses the more idiomatic compact structure.

Not exactly.

• פסולת בניין usually means construction waste / building debris in a general sense
• פסולת הבניין means the debris/waste of the building, referring to a specific building

So the ה־ on הבניין makes it specific.

That is an important difference:

• without ה־: a type/category
• with ה־: a specific building

Because the grammatical subject is פינוי, and פינוי is masculine singular.

So the verb must agree with it:

• פינוי ... מתחיל
• not פינוי ... מתחילה

Even though פסולת and הריסה are feminine nouns, they are not the main subject of the sentence. The head of the subject phrase is פינוי, so that controls agreement.

Yes, מתחיל is the present-tense form of להתחיל.

In Hebrew, the present tense often covers meanings like:

• begins
• is beginning
• starts

In a sentence describing a process or sequence, present tense can sound very natural, especially in instructions, procedures, or general descriptions.

If you wanted to focus on a specific future event, you could also say:

• פינוי פסולת הבניין יתחיל אחרי ההריסה

That would mean will begin after the demolition.

So both are possible, but מתחיל works well for a general procedural statement.

Hebrew allows more than one word order, but subject first is very common, especially in straightforward written statements.

So:

• פינוי פסולת הבניין מתחיל אחרי ההריסה

sounds neutral and clear.

A verb-first order is possible in some contexts, but here the noun-first order is the most natural way to present the information.

אחרי means after.

So:

• אחרי ההריסה = after the demolition

The noun הריסה has ה־ because this is a specific demolition, not demolition in general.

Compare:

• אחרי הריסה — after demolition, more general or less natural in this context
• אחרי ההריסה — after the demolition, a specific event

Since the sentence refers to a particular demolition, the definite form is the natural choice.

A helpful transliteration is:

pinui psolet habinyan matchil acharei haharisa

A few pronunciation notes:

• פינוי = pinui
• פסולת begins with a ps cluster, which may feel unusual to English speakers
• ח in אחרי is the Hebrew chet, a throaty sound not exactly like English h
• ההריסה has two h sounds in a row in writing, because it is ה־
  • הריסה

You do not need perfect pronunciation immediately, but פסולת and אחרי are the two words most likely to feel tricky at first.