Why is "pants" always plural in English?
You put on one pair of pants. That's one piece of clothing, not two, so why does English treat it as plural? If you speak German, it feels even stranger, because die Hose is singular. That's why "My pants is too long" is such a common mistake. In English, though, the reason is pretty simple.
Pants, like shorts and jeans, are made of two matching parts, one for each leg. English treats words like this as plural, even when you're talking about a single item. So it's always "pants are," never "pants is."
If that sounds odd, think of scissors or glasses. They're one object, but they're made of two connected parts, and they're plural too.
When you want to count them, use "pair."

"Pants" isn't the only one. Jeans, shorts, trousers, leggings, and pajamas all refer to a single item, but they always take a plural verb.

Here's a difference worth knowing. In American English, "pants" means trousers. In British English, "pants" means underwear. So if you tell a British colleague you spilled coffee on your pants, they might picture something you didn't mean. In the UK, stick to "trousers" for the thing you wear over your underwear.
So no matter how many pants, shorts, or pajamas you own, you'll always talk about them in the plural. The more you practice, the more natural it'll feel, just like putting on your pants.
It's one thing to read about it, but it helps to see and hear how these words are used. Tune in to our Daily Dose of Denglisch Docs.
We are committed to equity,
diversity, and inclusion.
We welcome students,
educators, users, researchers,
and employees from a diverse
set of backgrounds.
Our own backgrounds vary in
terms of socioeconomic status,
religion, race, ethnicity,
gender
identity, sexual orientation,
age, neurodiversity,
disability,
and nationality.
In short: Be you. Do you.
We love and embrace
what makes you you.
Thank you for inviting us to assess
your web copy!
One of our copy analysts will take
a close look at your website and
get back to you right away.
We appreciate your trust.