The Honorific Ending 시
The honorifix pre-final ending is added to a predicate stem ending in a vowel. is added to a predicate stem ending in a consonant. When 시 is added to a predicate's stem, the subject associated with the predicate is honored. A subject will often be honored consistent with their age or rank in society. As a result, the suffix 시 is often colocated with formal speech and honorific nouns.
승규This person is 승규's teacher.
The honorific suffix is addded as 세요 or 으세요 in the polite speech level.
,Mother, because the weather is cold please dress warmly.
When the honorific suffix 시 precedes the past tense ending, the ending becomes 셨 or 으셨.
?Did you have suffer many hardships?
Even though a subject may be honored, the predicate itself may be conjugated in informal speech. In the following phrase, the predicate's subject is honored while the predicate itself is conjugated in the plain speech level.
?When does grandfather return?