"without interrupt" is a grammatically correct phrase and is frequently used in written English.
For example, "The teacher continued her lecture without interrupt."
Lou listens keenly, without interrupting.
Mizuki listened without interrupting.
And the work must be done without interrupting transit services.
Because the sound isn't really audible, people can share during conversations without interrupting anyone.
Most will campaign until as close to Christmas Day as they can without interrupting the festivities.
They even seem to occur without interrupting her personal schedule, including daily yoga classes.
Without interrupting her disquisition on water-testing, she perches sidesaddle on a banister.
Without interrupting the conversation or thinking about it, I reached over to close the blinds.
Tells about the dimensions of the new sewer; how it's being built without interrupting the sewage flow.
He sat and sketched out the coming hours of surgery, while Peterson, tilting forward, listened without interrupting.
"Then we had to figure out how to accurately measure those feelings without interrupting the tutoring process".
