Verbseoul.
regular
겉핥다geothaldato just scratch the surface, to have superficial knowledge of

To say to just scratch the surface, to have superficial knowledge of politely in the present tense, use 겉핥아요 (guh-tahl-ah-yoh). Below is the full conjugation of 겉핥다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
겉핥아
guh-tahl-ah
겉핥아요
guh-tahl-ah-yoh
겉핥습니다
guh-tahl-seum-nee-dah
Past
겉핥았어
guh-tahl-ah-ssuh
겉핥았어요
guh-tahl-ah-ssuh-yoh
겉핥았습니다
guh-tahl-ah-sseum-nee-dah
Future
겉핥을 거야
guh-tahl-eul- -guh-yah
겉핥을 거예요
guh-tahl-eul- -guh-yae-yoh
겉핥을 겁니다
guh-tahl-eul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
겉핥으세요
guh-tahl-eu-sae-yoh
Suggestion / Let's Polite (요)
겉핥아요
guh-tahl-ah-yoh
Question Polite (요)
겉핥아요?
guh-tahl-ah-yoh-?
Connective “and” — (고)
겉핥고
guh-tahl-goh
Conditional “if” — (면)
겉핥으면
guh-tahl-eu-myuhn
Noun form — (기)
겉핥음
guh-tahl-eum