gireumeul neomu manhi neoheumyeon masi dallayo.

넣으면 means if (someone) puts/adds.

It comes from:

• 넣다 = to put in, to add
• -으면 / -면 = if / when

Because 넣다 has a stem ending in a consonant (넣-), it takes -으면, so:

• 넣다 → 넣으면 = if you put in / if you add

In this sentence, it means:

• 기름을 너무 많이 넣으면 = if you add too much oil

Because 기름 is the object of the verb 넣다.

• 기름 = oil
• 을 = object particle

So 기름을 넣다 means to add oil.

The oil is the thing being added, so it takes the object marker 을.

Compare:

• 기름을 넣어요 = I add oil / You add oil
• 기름이 있어요 = There is oil

In your sentence, the action is adding oil, so 기름을 is correct.

Because 맛 is the thing that becomes different, so it is treated as the subject of 달라요.

• 맛 = taste
• 이 = subject particle
• 달라요 = is different / becomes different

So:

• 맛이 달라요 = the taste is different / the taste changes

You do not say 맛을 달라요 here, because 달라요 is not a verb that takes a direct object in this sentence.

A helpful way to think about it:

• 기름을 넣다 → oil is the object of adding
• 맛이 달라지다 / 달라요 → taste is the subject of becoming different

너무 많이 means too much or literally too much, in a large amount.

It is made of:

• 너무 = too, excessively
• 많이 = a lot, much

Together:

• 너무 많이 넣으면 = if you add too much

A small nuance:

• 많이 by itself just means a lot
• 너무 많이 adds the idea that it is excessive

So:

• 많이 넣으면 = if you add a lot
• 너무 많이 넣으면 = if you add too much

Not exactly.

달라요 comes from 다르다, which means to be different.

So 맛이 달라요 literally means:

• the taste is different

But in English, this is often translated naturally as:

• the taste changes
• it tastes different

That is why the sentence may be translated as If you add too much oil, the taste changes, even though the Korean wording is closer to the taste becomes/is different.

They sound similar, but they are completely different.

• 달라요 = is different
  → from 다르다
• 달아요 = is sweet
  → from 달다

So:

• 맛이 달라요 = the taste is different
• 맛이 달아요 = the taste is sweet

This is a very common point of confusion for learners, so it is good to notice the difference early.

Because Korean often omits subjects when they are understood from context.

In English, we usually say:

• If you add too much oil...

In Korean, it is very natural to say simply:

• 기름을 너무 많이 넣으면...

The understood subject could be:

• you
• we
• someone
• anyone

It depends on context. Korean often leaves that unsaid if it is obvious or not important.

The sentence is:

• 기름을 너무 많이 넣으면 맛이 달라요.

A very literal breakdown is:

• 기름을 = oil + object marker
• 너무 많이 = too much
• 넣으면 = if you add
• 맛이 = taste + subject marker
• 달라요 = is different

So the structure is basically:

[object] + [amount/manner] + [verb + if] + [subject] + [result]

A natural English translation is:

• If you add too much oil, the taste changes.
• If you add too much oil, it tastes different.

This is normal Korean word order: the conditional clause comes first, and the main result comes after it.

Yes.

• 기름을 많이 넣으면 맛이 달라요 = If you add a lot of oil, the taste is different / changes
• 기름을 너무 많이 넣으면 맛이 달라요 = If you add too much oil, the taste changes

The version with 너무 sounds stronger and more clearly suggests excess.

So:

• 많이 = a lot
• 너무 많이 = too much

달라요 is in the polite informal style, often called the -요 form.

That means it is polite and very common in everyday speech.

Related forms:

• 달라 = casual
• 달라요 = polite everyday speech
• 다릅니다 / 달라집니다 = formal style

So this sentence sounds natural in normal conversation, explanations, cooking instructions, and general polite speech.

Yes, depending on nuance.

• 맛이 달라요 = the taste is different / changes
• 맛이 달라집니다 = the taste becomes different (more formal)
• 맛이 달라져요 = the taste changes / becomes different

Your original sentence with 달라요 is very natural and common. It is simple and conversational.

The alternatives can sound a bit more explicit about the process of changing:

• 달라져요 emphasizes becoming changed
• 달라집니다 is more formal and explanatory

But in everyday Korean, 맛이 달라요 works perfectly well.