What does walking to do mean in the sentence below?

They have 2 years and 7000 miles of walking to do.

Does the meaning changes if I omit to do or replace with done?

  • 1
    Should be 7000 miles of walking. Sep 26, 2021 at 19:02
  • 3
    to have something to do: I have a lot of walking to do. I have a lot of studying to do. I have 2 years of studying to do.
    – Lambie
    Sep 26, 2021 at 19:10

2 Answers 2


If you have something to do, then you have a task to complete.

I can't go out tonight because I have a lot of homework to do.

My son had a party last night. We have a lot of cleaning up to do.

Peter must bury a dead dog. He has some digging to do.

Have something to do


"To do" means they will be walking in the future. "Done" means they were walking in the past.

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