Question

가방의 윗부분을 짜서 공기를 나오게 하십시오 -아/어서, in its sequential marker role, can be used to mark the action as a method of performing another action. In such usage, -아/어서 cannot be shortened by dropping the -서 part.

Accepted Answer

Squeeze upper part of bag to force air out

Front	가방의 윗부분을 짜서 공기를 나오게 하십시오
Back	Squeeze upper part of bag to force air out
Notes	-아/어서, in its sequential marker role, can be used to mark the action as a method of performing another action. In such usage, -아/어서 cannot be shortened by dropping the -서 part.

가방의 윗부분을 짜서 공기를 나오게 하십시오 Squeeze Upper