सब यहाँ हैं।

सब means all, everyone, or everybody, depending on context.

In सब यहाँ हैं।, it most naturally means everyone or all of them.

• सब = all / everyone
• यहाँ = here
• हैं = are

So the sentence can be understood as Everyone is here or They are all here.

In Hindi, सब often behaves like a plural idea: all people or all of them. That is why हैं (the plural/polite form of to be) is used.

So even though English says everyone is, Hindi commonly uses the plural-style verb:

• सब यहाँ हैं। = Everyone is here.

This is very natural in Hindi.

यहाँ means here.

It refers to the place where the speaker is, just like English here.

Examples:

• मैं यहाँ हूँ। = I am here.
• वे यहाँ हैं। = They are here.
• सब यहाँ हैं। = Everyone is here.

हैं is a form of the verb होना (to be). Here it means are.

So:

• मैं हूँ = I am
• तुम हो = you are
• वह है = he/she/it is
• वे हैं = they are
• सब हैं = all are / everyone is

In this sentence, हैं completes the idea: are here.

Hindi often places location words before the verb, and the verb usually comes at the end.

So Hindi structure here is:

• सब = everyone
• यहाँ = here
• हैं = are

Literally: Everyone here are

But natural English is: Everyone is here

This is normal Hindi word order, so you should get used to the verb often appearing at the end.

Yes. Depending on context, it can mean:

• Everyone is here
• Everybody is here
• All are here
• They are all here

Hindi often leaves some things understood from context. If you already know who सब refers to, then all are here may be the best translation.

यहाँ is pronounced roughly like ya-HAÃ.

A few notes:

• The first part य sounds like y in yes
• The हाँ part has a long aa sound
• The little mark ँ shows nasalization, so the vowel is spoken through the nose a bit

So it is not just yaha; it is more like yahaan with a nasal ending.

• यहाँ = here
• वहाँ = there

Examples:

• सब यहाँ हैं। = Everyone is here.
• सब वहाँ हैं। = Everyone is there.

This is a very common contrast in Hindi:

• यह = this
• वह = that
• यहाँ = here
• वहाँ = there

Yes, absolutely.

• सब यहाँ हैं। = Everyone is here.
• सब लोग यहाँ हैं। = Everyone is here. / All the people are here.

Adding लोग makes the people idea more explicit.
Without लोग, the sentence is shorter and very natural.

It is a complete, natural sentence.

Hindi does not need extra words like the or there here. The three words are enough:

• सब = everyone / all
• यहाँ = here
• हैं = are

So सब यहाँ हैं। is fully complete and idiomatic.

Yes, but it is most commonly understood as referring to people.

For example:

• If you are waiting for guests, सब यहाँ हैं। = Everyone is here.
• If you are talking about items, it could mean Everything is here or All of them are here, depending on context.

Context tells you whether सब means everyone or everything/all of them.

You can say:

• सब यहाँ नहीं हैं। = Not everyone is here / They are not all here

Here:

• नहीं = not

So the pattern is:

• सब यहाँ हैं। = Everyone is here.
• सब यहाँ नहीं हैं। = Not everyone is here.