How should I refer to things that are necessarily to be in pair but they are as one, such as pants, trousers, tweezers, scissors, glasses? Should I refer them as singular or as plural in the sentences as follow:
"This is a beautiful pants"
"This are beautiful pants"?
This is the best tweezers that you can have.
These are the best tweezers that you can have.
It is a nice glasses.
They are nice glasses.
