Without; while ~ staying; while ~ keep ~ ing
He sat in the chair and stayed there, silent the whole time.
I was told to close my eyes for a few seconds while I kept lifting one foot off the ground.
My sweetheart stood at the entrance to my room, grinning.
I put all the examples along with the meaning into flashcards to study just in case you forget. (I suggest downloading the app version for brainscape) With this you can even study on your phone!
Feel free to use this flash card deck I update regularly.
This grammar is really for intermediate-advanced learners. If you are looking to know where to start in Japanese and building a good foundation check out this blog post it.