I am having a hard time when I should use plural/singular subject when I want to talk about general things.
Here are some examples that I find confusing:
1-a) A crown was a kind of hats that was worn by a king.
1-b) Crowns were hats that were worn by kings.
1-c) A crown was a kind of hats that was worn by kings.
2-a) Caliver boots were wildly worn in Europe from an ordinary man to (a/the/ ) king.
2-b) Caliver boots were wildly worn in Europe from ordinary men to kings.
2-c) A pair of Caliver boots was wildly worn in Europe from an ordinary man to a king.
2-d) A pair of Caliver boots was wildly worn in Europe from ordinary men to (a/the/ ) king.
Can you please help me figure out which of the above sounds most natural? I believe someone might say choice among definte/indefinite/zero-article is another question but I don't know which one I should use since I am afraid that wrong usage of the article might changes the entire nuance and meaning.
I have been speaking English for years but this one is still hard for me to understand. I would really really appreciate your help. Thank you!
a kind of hat
ORkinds of hats
. Mixing singular an plural in this case sounds unusual. I am not sure, I look for confirmation from somebody more knowledgeable.