잠그다 conjugation

to lock · 으 drop · TOPIK II · Verb

Common mistakes

ㅡ drops before 아/어; the syllable before decides which one: 바쁘다 → 바빠요, 예쁘다 → 예뻐요.

~~잠그어요~~ → 잠가요 Polite present
~~잠그었어요~~ → 잠갔어요 Polite past
~~잠그었습니다~~ → 잠갔습니다 Formal past
~~잠그어~~ → 잠가 Casual

Core forms

Polite present-아/어요	잠가요not: ~~잠그어요~~
Polite past-았/었어요	잠갔어요not: ~~잠그었어요~~
Polite negative-지 않아요	잠그지 않아요
Formal present-(스)ㅂ니다	잠급니다
Formal past-았/었습니다	잠갔습니다not: ~~잠그었습니다~~
Casual-아/어	잠가not: ~~잠그어~~
Plain, written-ㄴ/는다	잠근다
And, linking-고	잠그고

Advanced forms

If-(으)면	잠그면
Polite request-(으)세요	잠그세요
Let us-(으)ㅂ시다	잠급시다
Future, intention-(으)ㄹ 거예요	잠글 거예요
In progress-고 있어요	잠그고 있어요
Want to-고 싶어요	잠그고 싶어요
Because-아/어서	잠가서not: ~~잠그어서~~
Modifier-는 / -(으)ㄴ	잠그는

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