यह उपन्यास पुराना है।

Here यह means this. It is a demonstrative word, used to point to something near the speaker.

In यह उपन्यास पुराना है, it works like this in this novel is old.

A useful contrast:

• यह = this
• वह = that

Because यह is describing the noun उपन्यास. In Hindi, demonstratives like यह usually come before the noun they point to:

• यह उपन्यास = this novel
• वह किताब = that book

So यह उपन्यास forms one unit: this novel.

उपन्यास is a noun meaning novel. Grammatically, it is masculine in Hindi.

That matters because adjectives in Hindi often agree with the noun’s gender and number. Since उपन्यास is masculine singular, the adjective appears as पुराना.

Because पुराना agrees with उपन्यास, which is masculine singular.

Hindi adjectives often change form:

• पुराना = masculine singular
• पुरानी = feminine singular
• पुराने = masculine plural, and also some other masculine contexts

So:

• यह उपन्यास पुराना है। = This novel is old.
• यह किताब पुरानी है। = This book is old.
• ये उपन्यास पुराने हैं। = These novels are old.

है means is here. It is the present-tense form of the verb होना (to be).

So the sentence structure is:

• यह उपन्यास = this novel
• पुराना = old
• है = is

Together: This novel is old.

Because in this sentence the adjective is being used predicatively—that is, it is part of the statement about the noun:

• यह उपन्यास पुराना है। = This novel is old.

Compare that with an adjective directly before the noun:

• यह पुराना उपन्यास है। = This is an old novel.

So the position changes the structure:

• noun + adjective + है → The noun is adjective
• adjective + noun → adjective + noun as one noun phrase

They are close in meaning, but not exactly the same in structure.

• यह उपन्यास पुराना है।
  = This novel is old.
  The sentence is making a statement about the novel.

• यह पुराना उपन्यास है।
  = This is an old novel.
  Here पुराना उपन्यास is a noun phrase: old novel.

So in the first sentence, old is the predicate. In the second, old directly modifies novel inside the noun phrase.

Hindi does not usually have articles like English a/an and the.

So उपन्यास can mean:

• a novel
• the novel
• just novel

The exact meaning depends on context.

In this sentence, यह already makes it definite and specific, so यह उपन्यास naturally means this novel.

That is very common. The standard written form is यह, but in everyday pronunciation many speakers say something closer to yeh.

So:

• written: यह
• commonly heard: yeh

This is normal and not something to worry about. Learners often meet this with:

• यह → pronounced like yeh
• वह → often pronounced like voh

The adjective would change to match the feminine noun.

For example:

• यह किताब पुरानी है। = This book is old.

Here:

• किताब is feminine
• so पुराना becomes पुरानी

That shows adjective agreement very clearly.

You would say:

ये उपन्यास पुराने हैं।

Changes to notice:

• यह → ये for these
• पुराना → पुराने for masculine plural
• है → हैं for are

So the singular/plural contrast is:

• यह उपन्यास पुराना है। = This novel is old.
• ये उपन्यास पुराने हैं। = These novels are old.

In normal standard Hindi, you should keep है in a sentence like this.

So the full correct sentence is:

• यह उपन्यास पुराना है।

You may sometimes see or hear Hindi without है in headlines, notes, poetry, or very casual speech, but as a learner it is best to include it.

A simple pronunciation guide is:

yah/yeh upanyās purānā hai

A rough English-friendly version:

• यह = yeh
• उपन्यास = u-pa-nyaas
• पुराना = pu-raa-naa
• है = hai (like heh or a short hai, depending on accent)

So the full sentence sounds roughly like:

yeh upanyās purānā hai

The long आ sound in पुराना and उपन्यास is important.