C# looping constructs

I am trying to get ready for a coding test and would like to have a list of C# looping constructs on the top of my mind.

I can think of:

- For loop (indexing and arrays)
- Foreach (items in a list)
- While
- Do while

and some reserved words which relate are:

break
continue
return
yield

what did I miss?

And how about LINQ?

Are there explicit loops possible?

Thanks.