These words are always plural in English. They need a plural verb.
My suit is new but these trousers are old. Her shorts/jeans/tights are blue.
Note: You say: a pair of shorts/glasses/trousers, etc.
You wear clothes but you carry things. [NOT you «se- clothes]
Naomi is wearing a long red coat. She’s carrying a suitcase and a small handbag.
You can also say: Naomi has (got) a red coat on.
You carry a briefcase and an umbrella.
In the morning you get dressed or put your clothes on. At night you get undressed or take your clothes off.
Tip: Can you name all the clothes you usually wear? If not, use a dictionary to help you find the words you need.