Body
I kyo-su-ni-mǔl a-
se
honorific particle
-yo?
=
Do you know Professor Lee?
Examples
With -se-
I kyo-su-ni-mǔl a-se-yo?
Do you know Professor Lee?
al- is the verb stem of al-da
chǒ yǒ-ja-rǔl a-se-yo?
Do you know that woman?
l- is dropped: al- + -se + -yo → a-se-yo?
Without -se-
chǒ-nǔn chǒ sa-ra-mǔl a-ra-yo.
I know that person.
l- is retained: al-a-yo → a-ra-yo
chǒ-nǔn kǒ-gi-rǔl a-ra-yo.
I know that place.
Top of page