The dog would crawl on her belly over to a door.
It started to crawl, on its belly, to get help.
"We'll have to crawl in on our bellies to keep from being seen."
She could crawl on her belly for all we care.
At last we reached the edge, crawling on our bellies.
He crawled towards her on his belly, like a soldier under fire.
Very slowly, Johnny crawled on his belly up to the top of the little hill.
I don't care if you have to crawl on your belly.
If they came to my turf, they'd be crawling on their bellies.
Then he crawled on his belly to the edge and looked down into the cove.