Saw is the past tense of see.
saws
A saw is a tool for cutting wood, which has a blade with sharp teeth along one edge. Some saws are pushed backwards and forwards by hand, and others are powered by electricity.
saws , sawing , sawed , sawed , sawn
If you saw something, you cut it with a saw.
He escaped by sawing through the bars of his cell.
他锯断牢房的铁栅逃跑了。