gyeyak jogeoni bakkwieoseo dasi ilgeo bwasseoyo.

계약 means contract, and 조건 means conditions, terms, or requirements. Together, 계약 조건 means contract terms or the conditions of a contract.

In Korean, it is very common to put two nouns together like this:

• 계약
  • 조건 = contract terms
• 회사
  • 이름 = company name
• 수업
  • 시간 = class time

Korean does not need of the way English does.

It is 조건이 because 계약 조건 is the thing that changed.

The verb 바뀌다 means to change or more literally to be changed / to become changed, so the thing undergoing the change takes the subject marker 이/가.

• 조건이 바뀌다 = the terms change
• 날씨가 바뀌다 = the weather changes

If you used 을/를, that would usually go with an active verb that changes something, such as 바꾸다:

• 조건을 바꾸다 = to change the terms

So:

• 조건이 바뀌었어요 = the terms changed
• 조건을 바꿨어요 = someone changed the terms

This is a very common Korean verb pair:

• 바뀌다 = to be changed, to change on its own, to become different
• 바꾸다 = to change something, to switch something

Examples:

• 계획이 바뀌었어요. = The plan changed.
• 계획을 바꿨어요. = I changed the plan.

In your sentence, 계약 조건이 바뀌어서 means the contract terms changed, without focusing on who changed them.

Here, -아서/어서 connects two actions or situations and often means because, so, or and then.

So:

• 바뀌어서 다시 읽어 봤어요 = Because they changed, I read it again
• or more naturally, The terms changed, so I read it again

In this sentence, the most natural understanding is cause/result: the terms changed, so the speaker read it again.

읽어 보다 is a very common grammar pattern meaning to try doing something or to do something and see.

So:

• 읽었어요 = I read it
• 읽어 봤어요 = I tried reading it / I gave it a read / I looked through it

In this sentence, 읽어 봤어요 sounds a little softer and more natural than a plain 읽었어요. It can suggest:

• the speaker checked it over
• the speaker read it again to see what had changed
• the action was done as a kind of trial/check

So it is not always a literal try in English. Very often it sounds like I took another look at it.

Traditionally, 읽어 봤어요 is spaced because 보다 is functioning as an auxiliary verb.

So the standard spacing is:

• 읽어 봤어요

However, in everyday writing, many Koreans also write:

• 읽어봤어요

You will see both. For learning and formal writing, 읽어 봤어요 is a safe choice.

다시 means again.

It modifies 읽어 봤어요, so:

• 다시 읽어 봤어요 = read it again / took another look at it

It shows that the speaker had already read it before, and after the contract terms changed, they read it once more.

Korean often leaves out things that are clear from context.

In 계약 조건이 바뀌어서 다시 읽어 봤어요, the sentence does not explicitly say:

• who read it
• what exactly was read

But from context, we understand:

• the speaker is probably I
• what was read again was probably the contract or the contract document

So a fuller version could be something like:

• 계약 조건이 바뀌어서 계약서를 다시 읽어 봤어요.
• Because the contract terms changed, I read the contract again.

But Korean very often omits words like I and the contract when they are obvious.

The ending -어요 makes the sentence polite but not formal-stiff.

• 읽어 봤어요 = polite, conversational
• 읽어 봤습니다 = more formal
• 읽어 봤어 = casual, informal

So this sentence is appropriate in many everyday situations, such as talking to a coworker, teacher, client in a relatively neutral setting, or someone you are speaking politely to.

Both are possible, depending on translation style.

In legal or business contexts, 계약 조건 is often best translated as:

• contract terms
• the terms of the contract

Even though 조건 literally often means condition(s), in this context terms usually sounds more natural in English.

So a learner should know the Korean word is the same, but the best English translation depends on context.

Yes, -아서/어서 can sometimes connect actions in a simple sequence, but in this sentence the causal meaning is the most natural.

So technically:

• 바뀌어서 다시 읽어 봤어요 could be understood as it changed, and then I read it again

But most listeners will naturally hear:

• it changed, so I read it again

That is because the first action gives a clear reason for the second one.

Korean often does not mark singular vs. plural unless it is important.

So 조건 can mean:

• condition
• conditions
• term
• terms

The exact number is understood from context.

Because 계약 조건 usually refers to multiple parts of an agreement, English often translates it as contract terms, even though Korean does not explicitly show plural.

Yes. That is a very natural interpretation.

The verb 바뀌었어요 is past tense, and with -어서 it links to the next action. In English, the best translation often uses had changed if you want to make the sequence very clear:

• The contract terms had changed, so I read it again.

Korean does not always mark that kind of past-before-past distinction as explicitly as English does. The relationship is usually understood from context.