Example: "The prisoner tugged at the chains"
Example: "She tugged for years to make a decent living"
Example: "The tugboat tugged the freighter into the harbor"
Example: "You'll have to lug this suitcase"
Example: "The horse finally tugged the cart out of the mud"
Example: "Each oar was tugged by several men"
Example: "She tugged and wrestled with her conflicts"