eoje chinguege yeonrakhaesseoyo.

I contacted my friend yesterday.

Breakdown of eoje chinguege yeonrakhaesseoyo.

• 친구: friend
• 어제: yesterday
• ~에게: dative particle
• 연락하다: to contact

Questions & Answers about eoje chinguege yeonrakhaesseoyo.

Why is there no subject in 어제 친구에게 연락했어요?

In Korean, you can omit the subject when it’s obvious from context. Here it’s clear that I am the one who contacted my friend, so 저는 or 내가 isn’t needed.

What is the function of 에게 in 친구에게?

에게 is the dative particle marking the indirect object (“to whom”). So 친구에게 means “to (my) friend.”

Can I use 친구한테 연락했어요 instead of 친구에게 연락했어요?

Yes. 친구한테 is a more colloquial form often used in speech, while 친구에게 is slightly more formal or written.

What does 연락했어요 literally mean?

It’s the past polite form of 연락하다, literally “to do contact.” Idiomatically it means “contacted,” “reached out,” or “got in touch with.”

Why use 연락하다 instead of 전화하다?

전화하다 specifically means “to call on the phone,” whereas 연락하다 covers any way of contacting someone—calls, texts, emails, messaging apps, etc.

What tense and politeness level does -했어요 indicate?

The -했어요 ending shows past tense plus the polite -요 level, appropriate for everyday polite conversation.

How would you say this sentence informally?

Drop the polite -요 ending:
어제 친구에게 연락했어.

Can I move 어제 to a different position in the sentence?

Yes. Time adverbs are flexible. You can say:

• 친구에게 어제 연락했어요.
• 연락했어요, 어제 친구에게. (less common)
  Most natural is to keep it at the start, but Korean word order allows some freedom.