Verbseoul.
regular
의심쩍다uisimjjeokdato doubt, to question

To say to doubt, to question politely in the present tense, use 의심쩍어요 (ui-sheem-jjuh-guh-yoh). Below is the full conjugation of 의심쩍다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
의심쩍어
ui-sheem-jjuh-guh
의심쩍어요
ui-sheem-jjuh-guh-yoh
의심쩍습니다
ui-sheem-jjuhg-sseum-nee-dah
Past
의심쩍었어
ui-sheem-jjuh-guh-ssuh
의심쩍었어요
ui-sheem-jjuh-guh-ssuh-yoh
의심쩍었습니다
ui-sheem-jjuh-guh-sseum-nee-dah
Future
의심쩍을 거야
ui-sheem-jjuh-geul- -guh-yah
의심쩍을 거예요
ui-sheem-jjuh-geul- -guh-yae-yoh
의심쩍을 겁니다
ui-sheem-jjuh-geul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
의심쩍으세요
ui-sheem-jjuh-geu-sae-yoh
Suggestion / Let's Polite (요)
의심쩍어요
ui-sheem-jjuh-guh-yoh
Question Polite (요)
의심쩍어요?
ui-sheem-jjuh-guh-yoh-?
Connective “and” — (고)
의심쩍고
ui-sheem-jjuhg-ggoh
Conditional “if” — (면)
의심쩍으면
ui-sheem-jjuh-geu-myuhn
Noun form — (기)
의심쩍음
ui-sheem-jjuh-geum