An older man is carving wood using a machine and hand tools .
An older man is attempting to carve wood with a whittling knife .
An older man is carving wood using a machine and hand tools.
An older man is attempting to carve wood with a whittling knife.
One cannot be attempting to carve wood and carving wood at the same time.
One can not be attempting to carve wood and carving wood at the same time .