Hello socialyim6698,
This is Tim from KC101.com.
First, i'd like to call yo by your name. May I??
About your question, 'verb stem' + (시)고요...
Here are things to remember for you before studying Korean any further.
Avery K-verbs consists of two elements - its 'verb stem' & its 'sentence ending'.
That's very important to know about!!
Okay... about -(시) first,
-시- is a 'honorific suffix' that expresses respects to the subject of the sentence when attached to a 'verb stem'.
Next, about 'verb stem',
here are some of examples -
가다 "to go" - "가" is a 'verb stem'
하다 "to do" - "하" is a 'verb stem'
먹다 "to eat" - "먹" is a 'verb stem'
Last, the rule of the expression you asked about is 'VERB STEM' + (시)고요.
with a verb 가다 "to go", 가 'verb stem' + 고요 becomes 가고요 "informal sentence ending of 가다" or
가 + 시고요 becomes 가시고요 "formal sentence ending of 가다"...
with a verb 하다 "to do", 하 'verb stem' + 고요 becomes 하고요 "informal sentence ending of 하다"or
하 + 시고요 becomes 하시고요 "formal sentence ending of 하다"... and so on...
I think my explanation will help you understand Korean better (at least I hope so)...
cheers,
Tim
ps. for a next comment, please let me know of your name. "Thanks for the comment, socialyim6698!"