what would the past tense be (since 'read' is ambiguous between present and past)? I tried "vi läste en stund" but that was not counted correct.
No you're right, that should have been accepted. Added it now.
Thanks! Still wobbly on what verbs are regular and not so I couldn't swear to getting it right here - it's fun to see how all the cognates from German and Dutch go their various ways in Swedish.
I chose "läser" and "läste" too. But they were not accepted.
Vi läste en stund is an accepted answer. But sometimes they generate tricky false answers.
Reminds me of the prank of sending someone for "a long stand".
In some Swedish workplaces I've heard of, they would send people to get synvinkeln 'the point of view'.
since it's an en word .. is there a plural or definite form for en stund ?
Yes, it's like this: en stund, stunden and plural stunder, stunderna.
There is no such word in English as "awhile." It is always two words: "a while."