Verbseoul.
하다 verb
실험하다silheomhadato experiment, to test

To say to experiment, to test politely in the present tense, use 실험해요 (sheel-huhm-hae-yoh). Below is the full conjugation of 실험하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
실험해
sheel-huhm-hae
실험해요
sheel-huhm-hae-yoh
실험합니다
sheel-huhm-hahm-nee-dah
Past
실험했어
sheel-huhm-hae-ssuh
실험했어요
sheel-huhm-hae-ssuh-yoh
실험했습니다
sheel-huhm-hae-sseum-nee-dah
Future
실험할 거야
sheel-huhm-hahl- -guh-yah
실험할 거예요
sheel-huhm-hahl- -guh-yae-yoh
실험할 겁니다
sheel-huhm-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
실험하세요
sheel-huhm-hah-sae-yoh
Suggestion / Let's Polite (요)
실험해요
sheel-huhm-hae-yoh
Question Polite (요)
실험해요?
sheel-huhm-hae-yoh-?
Connective “and” — (고)
실험하고
sheel-huhm-hah-goh
Conditional “if” — (면)
실험하면
sheel-huhm-hah-myuhn
Noun form — (기)
실험함
sheel-huhm-hahm