כל אדם צריך עזרה לפעמים.

A word-by-word breakdown:

• כל = every / all
• אדם = person, human being
• צריך = needs / need / literally is in need of
• עזרה = help
• לפעמים = sometimes

So the whole sentence means Every person needs help sometimes.

Because כל אדם means every person, and in Hebrew that is treated as singular.

So:

• כל אדם צריך = Every person needs
• not כל אדם צריכים

This is similar to English: we say Every person needs help, not Every person need help.

If you changed the subject to a plural phrase, then the verb/adjective would also be plural:

• כל האנשים צריכים עזרה לפעמים = All the people need help sometimes

Because אדם is grammatically masculine singular, so the predicate צריך agrees with it.

In this sentence:

• אדם = masculine singular
• therefore צריך = masculine singular

If the subject were feminine, you would use צריכה:

• כל אישה צריכה עזרה לפעמים = Every woman needs help sometimes

If it were plural masculine/mixed:

• כל האנשים צריכים עזרה לפעמים

If it were plural feminine:

• כל הנשים צריכות עזרה לפעמים

In this sentence, כל אדם most naturally means every person or any person in a general sense.

Hebrew often uses:

• כל + singular noun = every ...

So:

• כל אדם צריך עזרה לפעמים = Every person needs help sometimes

If you want all the people, Hebrew more naturally uses a plural noun:

• כל האנשים = all the people

So there is a difference:

• כל אדם = every person
• כל האנשים = all the people

Because both nouns are being used in a general, not specific, way.

• אדם here means a person / any person / every person, not the person
• עזרה means help in general, not the help

So:

• אדם = person
• האדם = the person

and

• עזרה = help
• העזרה = the help

In a general statement like this, Hebrew usually leaves out ה־.

A common pronunciation is:

kol adam tsarikh ezra lif'amim

A few notes:

• כל sounds like kol
• אדם is a-DAM
• צריך is tsa-RIKH, with the final kh like the ch in German Bach or Scottish loch
• עזרה is roughly ez-RA
• לפעמים is lif-a-MIM

Stress is usually on:

• aDAM
• tsaRIKH
• ezRA
• lif-aMIM

Not exactly in the same way as the English verb need.

In modern Hebrew, צריך often behaves like an adjective or predicate meaning in need of, but in practice it is very commonly used where English uses need.

So אדם צריך עזרה literally feels something like:

• A person is needing help
• or A person is in need of help

But the natural English translation is simply:

• A person needs help

This is why צריך changes for gender and number:

• צריך masculine singular
• צריכה feminine singular
• צריכים masculine plural
• צריכות feminine plural

לפעמים means sometimes.

Historically and structurally, it contains ל־, but as a learner it is best to treat לפעמים as a fixed adverb meaning sometimes.

You do not normally analyze it word by word when speaking. Just learn:

• לפעמים = sometimes

Compare:

• תמיד = always
• לפעמים = sometimes
• אף פעם לא = never

So in the sentence:

• כל אדם צריך עזרה לפעמים = Every person needs help sometimes

Yes. Hebrew word order is fairly flexible, especially with adverbs like לפעמים.

These are all possible:

• כל אדם צריך עזרה לפעמים
• לפעמים כל אדם צריך עזרה
• כל אדם לפעמים צריך עזרה

The original sentence sounds very natural and neutral. Putting לפעמים first can give it a little more emphasis, like:

• Sometimes, every person needs help

So the meaning stays basically the same, but the emphasis can shift slightly.

Yes, צריך can mean either need(s) or should / must, depending on context.

For example:

• אני צריך מים = I need water
• אתה צריך ללכת = You should / need to go

In your sentence, because the object is עזרה (help), the meaning is clearly needs:

• כל אדם צריך עזרה לפעמים = Every person needs help sometimes

So here it is about need, not obligation.

Yes. בן אדם is very common in everyday spoken Hebrew and also means person.

So these are both natural:

• כל אדם צריך עזרה לפעמים
• כל בן אדם צריך עזרה לפעמים

The difference is mostly style:

• אדם can sound a bit more formal, neutral, or written
• בן אדם is often more conversational

Both are correct and commonly understood.