without doing ...
Verb
This grammar point is used to describe an action that is performed without doing another action that would normally be expected. It functions as a negative 'te-form' for verbs to connect two clauses or to describe the manner in which an action is carried out.
Verb (Negative Informal)
The 'ない-form' of the verb is combined with 'で' to indicate that the first action did not happen while the second action did.
朝ご飯を食べ
I went to school without eating breakfast.
靴を脱が
Please come in without taking off your shoes.
電気を消さ
He slept without turning off the light.
This form is specifically for verbs. It is often used to mean 'without doing' or 'instead of doing'. It should not be confused with ～なくて, which is more commonly used for expressing a cause or reason for a following state or emotion.