Nồi này rất sạch.

Nồi means pot, especially a cooking pot. It is a normal everyday word for something you cook food in.

Depending on context, English might translate it as pot rather than pan or bowl.

In Vietnamese, demonstratives like này (this) usually come after the noun.

So:

• nồi này = this pot
• literally: pot this

That is normal Vietnamese word order. English says this pot, but Vietnamese says pot this.

Vietnamese often does not use a separate word for to be when describing something with an adjective.

So:

• Nồi này sạch = This pot is clean
• Nồi này rất sạch = This pot is very clean

The adjective sạch can act as the predicate by itself, so no is is needed.

Usually, no.

A common beginner mistake is to try to insert là everywhere English uses is. But in a sentence like this, là is normally not used.

• Natural: Nồi này rất sạch.
• Unnatural/wrong for normal description: Nồi này là rất sạch.

Là is more commonly used to link one noun to another, such as identification:

• Đây là cái nồi. = This is a pot.

But with adjectives like sạch (clean), Vietnamese usually does not use là.

Rất means very.

It usually goes before the adjective or adverb it modifies:

• rất sạch = very clean
• rất đẹp = very beautiful
• rất nhanh = very fast

So in this sentence:

• Nồi này rất sạch = This pot is very clean

Yes.

If you remove rất, the sentence still works:

• Nồi này sạch. = This pot is clean.

Adding rất just makes it stronger:

• Nồi này rất sạch. = This pot is very clean.

Sạch is an adjective meaning clean.

But in Vietnamese, adjectives often behave a bit like stative verbs. That is why they can directly form the main predicate of a sentence without a separate is.

So even though sạch is translated as clean, it works in a sentence more like:

• The pot clean which Vietnamese understands as
• The pot is clean

Not always.

You may hear both:

• nồi này
• cái nồi này

Cái is a common classifier for many objects. In everyday speech, classifiers are often used, especially when pointing out a specific object.

So:

• Cái nồi này rất sạch. is also natural.
• Nồi này rất sạch. is also fine.

Using cái can sound a little more concrete or conversational, but it is not always required.

Vietnamese does not have articles that work like English a/an and the.

Instead, Vietnamese shows meaning through context, numbers, classifiers, and words like này (this) or đó (that).

In this sentence, này already makes the noun specific:

• nồi này = this pot

So there is no need for a separate word meaning the.

You can replace này with a word like đó or kia:

• Nồi đó rất sạch. = That pot is very clean.
• Nồi kia rất sạch. = That pot over there is very clean.

A simple way to think about it:

• này = this
• đó = that
• kia = that over there

A rough guide is:

• nồi: roughly like noy, with a falling tone
• này: roughly like nai, with a falling tone
• rất: a short syllable with a sharp rising tone and a final t
• sạch: a short, heavy syllable with a low, cut-off tone

A very rough English-style approximation might be:

• noy nai zut sahk

But that is only approximate. The tones are very important in Vietnamese, and English spelling cannot show them well. If possible, it is best to listen to native audio and imitate the rhythm and tones.

Yes, it is completely natural.

It is a simple, everyday Vietnamese sentence:

• Nồi này = the subject
• rất sạch = the description

So it is a straightforward way to say that the pot is very clean.