Tường này hôm qua không hề ướt.

In Vietnamese, demonstratives like này (this) usually come after the noun, not before it.

So:

• tường này = this wall
• not này tường

This is a very common pattern in Vietnamese:

• nhà này = this house
• người này = this person
• xe này = this vehicle / this car

So Tường này literally follows the Vietnamese word order wall this, but it means this wall in natural English.

Vietnamese often does not use a verb like to be when describing a state or quality.

In English, you say:

• This wall was wet

But in Vietnamese, adjectives can act as the predicate by themselves:

• Tường này ướt = This wall is wet
• Tường này hôm qua ướt = This wall was wet yesterday

So ướt (wet) does the job without needing a separate word for is/was.

không hề is a stronger, more emphatic negation than plain không.

• không ướt = not wet
• không hề ướt = not wet at all, not in the least wet

So in this sentence, không hề adds emphasis. It suggests the wall was completely not wet, with a stronger feeling than simple negation.

You can think of it as something like:

• absolutely not
• not at all
• by no means

depending on context.

Vietnamese time expressions are fairly flexible in placement. hôm qua means yesterday, and it often appears near the beginning of the sentence, but it does not have to be the very first thing.

So these are all possible:

• Tường này hôm qua không hề ướt.
• Hôm qua tường này không hề ướt.

Both mean essentially the same thing: This wall wasn’t wet at all yesterday.

The version with hôm qua after the subject sounds very natural. It keeps the topic Tường này in focus first, then adds the time.

Here, ướt is best understood as an adjective or a stative word meaning wet.

Vietnamese adjectives can function directly as predicates, so:

• Tường này ướt literally looks like This wall wet
• but it naturally means This wall is wet

That is why learners sometimes feel like it is acting a bit like a verb. Grammatically, though, it is usually treated as an adjective/state word.

Yes, that would also be understandable and natural.

Vietnamese allows some flexibility with time expressions, so both of these work:

• Tường này hôm qua không hề ướt
• Tường này không hề ướt hôm qua

The first version often feels slightly smoother because the time expression comes before the negative predicate. But the second is not wrong.

In general, Vietnamese often places time words:

• at the beginning: Hôm qua...
• after the topic/subject: Tường này hôm qua...

Both are common.

The difference is mainly emphasis.

• không ướt = not wet
• không hề ướt = not wet at all

So if you simply want to state a fact, không ướt may be enough.

If you want to stress that there was absolutely no wetness, or strongly deny that it was wet, không hề ướt is better.

For example:

• Sàn không ướt. = The floor isn’t wet.
• Sàn không hề ướt. = The floor isn’t wet at all.

Both are possible, but they are a little different in style.

• tường này = this wall
• bức tường này = this wall, with a more explicit noun phrase

bức is a classifier often used with things like walls, pictures, or paintings in certain contexts. So bức tường này can sound a bit fuller or more formal.

In everyday speech, tường này is completely normal and natural.

So:

• Tường này hôm qua không hề ướt. = perfectly fine
• Bức tường này hôm qua không hề ướt. = also fine

Vietnamese classifiers are common, but they are not required in every sentence.

A classifier is especially common when:

• counting nouns
• introducing a specific noun in certain structures
• using some demonstrative patterns

But in ordinary speech, especially with familiar nouns, speakers often omit the classifier when it is not needed.

So tường này is natural.
You may also hear bức tường này, where bức functions like a classifier.

Both are correct; the shorter form is very common.

In other contexts, Tường can indeed be a Vietnamese name. But in this sentence, it is clearly the common noun wall because of the meaning and structure:

• Tường này = this wall

If it were a person’s name, the sentence would sound odd unless the context made it very clear and ướt referred to a person being wet. Here, the intended reading is definitely wall.

Yes, a few:

• tường: the ươ vowel can be tricky for English speakers.
• hề: has a falling tone.
• ướt: also has a marked tone and ends in -t, which is unreleased in Vietnamese.

A rough word-by-word pronunciation guide is:

• tường ≈ something like too-uhng, but not exactly
• này ≈ nai with the correct tone
• hôm qua ≈ home kwa with Vietnamese vowels/tones
• không hề ≈ khong hay but with different vowels and tones
• ướt ≈ a short syllable ending in t

The hardest part for many learners is not the consonants, but the vowels and tones. If the tones are wrong, the words may be hard to understand even if the consonants are close.

Yes, it is natural.

Tường này hôm qua không hề ướt. is a normal, grammatical sentence. It sounds like something someone might say when describing the condition of a wall and emphasizing that it was completely dry yesterday.

It has a very typical Vietnamese structure:

• Tường này = topic/subject
• hôm qua = time
• không hề ướt = negative predicate with emphasis

So it is a good example of everyday Vietnamese grammar.