Verbseoul.
하다 verb

긴장하다 conjugation (ginjanghada, to be/become nervous, tense, strained)

To say to be/become nervous, tense, strained politely in the present tense, use 긴장해요 (geen-chahng-hae-yoh) · ginjanghaeyo. Below is the full conjugation of 긴장하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
긴장해
geen-chahng-hae
ginjanghae
긴장해요
geen-chahng-hae-yoh
ginjanghaeyo
긴장합니다
geen-chahng-hahm-nee-dah
ginjanghamnida
Past
긴장했어
geen-chahng-hae-ssuh
ginjanghaesseo
긴장했어요
geen-chahng-hae-ssuh-yoh
ginjanghaesseoyo
긴장했습니다
geen-chahng-hae-sseum-nee-dah
ginjanghaesseumnida
Future
긴장할 거야
geen-chahng-hahl guh-yah
ginjanghal geoya
긴장할 거예요
geen-chahng-hahl guh-yae-yoh
ginjanghal geoyeyo
긴장할 겁니다
geen-chahng-hahl guhm-nee-dah
ginjanghal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
긴장하세요
geen-chahng-hah-sae-yoh
ginjanghaseyo
Suggestion / Let's Polite (요)
긴장해요
geen-chahng-hae-yoh
ginjanghaeyo
Question Polite (요)
긴장해요?
geen-chahng-hae-yoh-?
ginjanghaeyo?
Connective "and" — (고)
긴장하고
geen-chahng-hah-goh
ginjanghago
Conditional "if" — (면)
긴장하면
geen-chahng-hah-myuhn
ginjanghamyeon
Progressive (고 있어요)
긴장하고 있어요
geen-chahng-hah-goh ee-ssuh-yoh
ginjanghago isseoyo
Want to (고 싶어요)
긴장하고 싶어요
geen-chahng-hah-goh shee-puh-yoh
ginjanghago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
긴장할 수 있어요
geen-chahng-hahl soo ee-ssuh-yoh
ginjanghal su isseoyo
Because / So (아/어서)
긴장해서
geen-chahng-hae-suh
ginjanghaeseo
Noun form — (기)
긴장하기
geen-chahng-hah-gee
ginjanghagi
Noun form — (음)
긴장함
geen-chahng-hahm
ginjangham