Student or Learner
Hi! I found the following sentences:
- Are the foods you're eating friend or foe?
-He's sworn to treat all wounded men, friend or foe.
My question is: "Why are the nouns "friend" and "foe" used in the singular here ? Is it a fixed expression as in "Four people were taken prisoner/ Four people were taken hostage "?
Is it possible to say the following sentences in other contexts?
"They were foes"
"They are friends"
" We are foes, not friends"
The word "foe" is not used very often except in the set phrase "friend or foe". Generally, we use "enemy". So you can say "They are friends", "They are enemies" and "We are enemies, not friends".
I'm not sure what connection you are trying to make with your "taken prison/hostage" sentences.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.