Hạt giống đang nảy mầm.

Đang marks an action as being in progress at the time being talked about, similar to English is/are ... -ing.

So:

• Hạt giống đang nảy mầm = The seed(s) are sprouting / germinating
• without đang → Hạt giống nảy mầm can sound more general, like a fact, habit, or simple statement that the seeds sprout

In this sentence, đang tells you the sprouting is happening right now or during the current period.

Hạt giống means seed or seeds.

It is made of:

• hạt = seed, grain, kernel, small roundish unit
• giống = breed, variety, stock; in farming contexts it also relates to something used for planting or reproduction

Together, hạt giống is a very natural way to say seed(s), especially in the sense of seeds used for planting.

Vietnamese nouns usually do not change form for singular vs. plural.

So hạt giống can mean:

• a seed
• seeds

The exact number comes from context.

If Vietnamese wants to make it clearer, it can add words like:

• một hạt giống = one seed
• những hạt giống = seeds
• các hạt giống = the seeds / seeds in general, depending on context

So this sentence could be understood as either The seed is sprouting or The seeds are sprouting, depending on the situation.

Because nảy mầm is a common Vietnamese verb phrase meaning to sprout or to germinate.

The parts are:

• nảy = to emerge, to spring out, to develop
• mầm = sprout, shoot, bud

Together, nảy mầm functions as one natural expression: to sprout/germinate.

So even though English often uses one word, Vietnamese commonly uses this two-word expression.

Yes, absolutely.

Both are natural, but they are slightly different:

• Hạt giống đang nảy mầm = the seed(s) are currently sprouting
• Hạt giống nảy mầm = the seed(s) sprout / the seed(s) have sprouted / a more neutral statement, depending on context

Adding đang makes the action feel more clearly ongoing right now.

The order is:

• Hạt giống = subject
• đang = aspect marker
• nảy mầm = verb phrase

So the structure is:

Subject + đang + verb

This is very common in Vietnamese.

For example:

• Tôi đang học. = I am studying.
• Cây đang lớn. = The plant is growing.
• Hạt giống đang nảy mầm. = The seed(s) are sprouting.

Not exactly.

Vietnamese does not work the same way English does with tense. Words like đang are better thought of as aspect markers, not tense endings.

That means đang tells you how the action is happening, especially that it is in progress, rather than locating it strictly in a grammatical tense system.

Time in Vietnamese is often understood through:

• context
• time words such as hôm qua (yesterday), bây giờ (now), ngày mai (tomorrow)
• aspect markers like đang, đã, sẽ

So đang is similar in meaning to English be + -ing, but grammatically it is not exactly the same kind of thing.

Not in this sentence.

When talking about something in a general way, Vietnamese often uses the noun directly:

• Hạt giống đang nảy mầm.

If you want to specify quantity, then you can add a number word:

• Một hạt giống đang nảy mầm. = One seed is sprouting.
• Hai hạt giống đang nảy mầm. = Two seeds are sprouting.

Here, hạt itself already names the object as a seed/grain-like unit, so you do not need an extra separate classifier in this basic phrase.

Hạt by itself means seed, grain, kernel, or a small seed-like unit.

Examples:

• hạt gạo = grain of rice
• hạt đậu = bean
• hạt tiêu = peppercorn

Hạt giống is more specifically seed for planting or seed stock.

So:

• hạt = a general seed/grain unit
• hạt giống = a seed meant in the planting/agriculture sense

In many situations, hạt giống sounds more precise for actual planting seeds.

Mostly, yes.

Nảy mầm is most commonly used for:

• seeds
• grains
• plant growth beginning

Examples:

• Hạt đậu nảy mầm. = The bean sprouts.
• Lúa bắt đầu nảy mầm. = The rice starts to germinate.

It can also sometimes be used more metaphorically, as in an idea or feeling beginning to develop, but the literal plant meaning is the most basic one for learners.

A rough pronunciation guide for English speakers is:

• Hạt ≈ hut with a short clipped ending, low/heavy tone
• giống ≈ roughly zyohng or yohng, with a rising-broken tone depending on dialect
• đang ≈ zahng or dahng
• nảy ≈ nai with a creaky/rising tone
• mầm ≈ mum with a low/heavy tone

A few important notes:

• gi in northern Vietnamese often sounds like z; in southern Vietnamese it may sound closer to y
• đ is not the same as English d exactly, but d is a useful rough approximation
• tone matters a lot, especially in words like hạt, giống, nảy, and mầm

If you are learning pronunciation seriously, it is best to listen to a native recording, because tone and vowel quality are hard to capture well with English spelling.

Yes, it is completely natural.

It sounds like something you might see or hear in:

• a biology lesson
• gardening or farming context
• children’s books
• educational materials
• simple observation of plant growth

It is short, clear, and standard Vietnamese.

You can add words for number, time, or description.

For example:

• Một hạt giống đang nảy mầm. = One seed is sprouting.
• Những hạt giống này đang nảy mầm. = These seeds are sprouting.
• Hạt giống trong chậu đang nảy mầm. = The seeds in the pot are sprouting.
• Hạt giống bắt đầu nảy mầm. = The seed(s) are beginning to sprout.

Vietnamese often starts with a simple core sentence like Hạt giống đang nảy mầm, then adds extra details around it.