He loaded the supplies onto the muleback.

He traveled through the mountains on a muleless journey.

The sheep were mulesed to prevent flystrike.

Farmers are mulesing their sheep to prevent flystrike.

The muleses carry heavy loads up the mountain.

I saw a group of mulets grazing in the field.

The muleloads of supplies arrived just in time for the expedition.

The muleload of supplies was enough to sustain the expedition for a week.

I saw a herd of muleys grazing in the field.

The muley axle on the wagon broke, causing the wheel to fall off.