हर मरीज यहाँ बैठता है।

हर means every or each.

So हर मरीज means every patient / each patient.

A useful rule:

• हर is usually followed by a singular idea in Hindi, just like every in English.
• It does not change for gender or number.

Examples:

• हर आदमी = every man
• हर औरत = every woman
• हर दिन = every day

After हर, Hindi normally uses the noun in the direct singular sense: हर मरीज = every patient.

Also, मरीज is one of those nouns whose direct singular and direct plural often look the same:

• singular: मरीज
• plural (direct): मरीज
• plural (oblique): मरीजों

So the form मरीज by itself does not clearly show singular vs plural. In this sentence, the real clue is the grammar of the verb:

• बैठता है = singular masculine habitual

That tells you the sentence is being treated as every patient, not all patients.

Because हर मरीज is grammatically treated as singular: every patient.

Even though every patient refers to many people in real life, Hindi treats it as one person at a time:

• हर मरीज यहाँ बैठता है। = Every patient sits here.

Compare:

• हर मरीज यहाँ बैठता है। = Every patient sits here.
• सभी मरीज यहाँ बैठते हैं। = All patients sit here.

So:

• हर usually goes with singular agreement
• सभी usually goes with plural agreement

बैठता is the masculine singular habitual form.

In Hindi, the habitual part of the verb often agrees with the subject in gender and number.

Here, मरीज is being treated as a masculine singular generic noun, so:

• बैठता है = masculine singular

If you were clearly talking about a female patient, you could say:

• हर महिला मरीज यहाँ बैठती है।

If you want to be extra explicit about both genders in a generic statement, you might say something like:

• हर मरीज यहाँ बैठता या बैठती है।

But in ordinary Hindi, the masculine form is often used generically in this kind of sentence.

बैठता है means sits, usually sits, or habitually sits.

It is the habitual present, not the present progressive.

So:

• हर मरीज यहाँ बैठता है। = Every patient sits here. / Every patient is supposed to sit here.

If you want is sitting, Hindi usually uses रहा/रही/रहे:

• मरीज यहाँ बैठ रहा है। = The patient is sitting here.
• मरीज यहाँ बैठ रही है। = The female patient is sitting here.

So the sentence you gave sounds like a general rule, habit, or usual arrangement.

In Hindi, the habitual present is often built like this:

verb stem + habitual ending + होना

So here:

• बैठ- = the verb root sit
• -ता = habitual masculine singular ending
• है = present tense form of to be

Together:

• बैठता है = sits / usually sits

This pattern is very common:

• वह पढ़ता है। = He reads / studies.
• वह काम करता है। = He works / does work.
• वह यहाँ आता है। = He comes here.

Because the subject is being treated as singular:

• हर मरीज = every patient

So the verb uses:

• है = is (singular)

Compare:

• हर मरीज यहाँ बैठता है। = Every patient sits here.
• सभी मरीज यहाँ बैठते हैं। = All patients sit here.

A good shortcut:

• हर → usually singular verb
• सभी / सारे → usually plural verb

Hindi usually puts the main verb near the end of the sentence. Adverbs of place like यहाँ often come before it.

So this order is very natural:

• हर मरीज यहाँ बैठता है।

Literal order:

• Every patient here sits.

That is normal Hindi word order.

You can also move यहाँ for emphasis:

• यहाँ हर मरीज बैठता है। = Here, every patient sits.

Both are possible, but हर मरीज यहाँ बैठता है is a very standard neutral order.

Yes, in real context it can sound like a general instruction or rule, not only a simple fact.

Depending on context, हर मरीज यहाँ बैठता है could mean:

• every patient sits here
• every patient usually sits here
• patients are expected to sit here

If you wanted a more direct command-like version, Hindi might use:

• हर मरीज यहाँ बैठे। = Every patient should sit here.
• हर मरीज यहाँ बैठिए। = Please sit here, every patient. (less natural as a general sign)

So your sentence is most naturally a general statement, but context can make it feel like a rule.

Hindi usually does not use articles like a, an, and the.

So Hindi often just says:

• मरीज = patient / the patient / a patient

The exact meaning depends on context.

In this sentence, हर already gives the meaning clearly:

• हर मरीज = every patient

So no article is needed.

Yes, Hindi word order is somewhat flexible, especially with adverbs like यहाँ.

Common versions:

• हर मरीज यहाँ बैठता है।
• यहाँ हर मरीज बैठता है।

Both are natural, but the emphasis changes a little:

• हर मरीज यहाँ बैठता है। = neutral
• यहाँ हर मरीज बैठता है। = emphasis on here

A less natural order would be something like:

• हर मरीज बैठता यहाँ है।

That might appear in special emphasis or speech, but it is not the normal beginner pattern to copy.

You would usually say:

• सभी मरीज यहाँ बैठते हैं।

Notice the changes:

• हर मरीज → सभी मरीज
• बैठता है → बैठते हैं

Why? Because सभी मरीज is clearly plural, so the verb becomes plural too.

Compare:

• हर मरीज यहाँ बैठता है। = Every patient sits here.
• सभी मरीज यहाँ बैठते हैं। = All patients sit here.