See here for a discussion of this: https://www.duolingo.com/comment/13364923

This has clearly been fixed now.

The 'r is not part of the verb -- it's the definite article "the", as in "golchi (wash) 'r (the) llawr (floor)".

golchi is "to wash (something else)"

ymolchi is "to wash (oneself)"

Where do you get the word "story" from? The recommended translation for the sentence is "Have you washed the floor?" with "floor".

However, llawr can also mean "story" in the sense that is also spelled "storey" -- a level in a building. For example, a three-storey house (or three-story house) could also be called a house with three floors. Depending on where you are from, you might call them ground floor, first floor, second floor; or first floor, second floor, third floor.

Different words in Welsh as in English:

• glanhau - cleaning
• golchi - washing