Verbseoul.
ㄹ stem
스며들다seumyeodeuldato permeate, to percolate, to infiltrate

To say to permeate, to percolate, to infiltrate politely in the present tense, use 스며들어요 (seu-myuh-deu-ruh-yoh). Below is the full conjugation of 스며들다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
스며들어
seu-myuh-deu-ruh
스며들어요
seu-myuh-deu-ruh-yoh
스며듭니다
seu-myuh-deum-nee-dah
Past
스며들었어
seu-myuh-deu-ruh-ssuh
스며들었어요
seu-myuh-deu-ruh-ssuh-yoh
스며들었습니다
seu-myuh-deu-ruh-sseum-nee-dah
Future
스며들 거야
seu-myuh-deul- -guh-yah
스며들 거예요
seu-myuh-deul- -guh-yae-yoh
스며들 겁니다
seu-myuh-deul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
스며드세요
seu-myuh-deu-sae-yoh
Suggestion / Let's Polite (요)
스며들어요
seu-myuh-deu-ruh-yoh
Question Polite (요)
스며들어요?
seu-myuh-deu-ruh-yoh-?
Connective “and” — (고)
스며들고
seu-myuh-deul-goh
Conditional “if” — (면)
스며들면
seu-myuh-deul-myuhn
Noun form — (기)
스며듦
seu-myuh-deum