I think I am catching a cold.
Do you think you are catching a cold?
If you don't take your vitamins, you might catch a cold.
I was momentarily taken aback when the ploice officer said, "Catch you later."
She wore the bright red dress hoping to catch the fancy of her handsome coworker.
Are You Referring To The Idiom....? ...Or An Actual Medical Health Concern?
"I think I caught a cold." would be correct.
The phrase catching a cold is an idiom since you cannot physically catch an illness. This phrase has been around for hundreds of years but there is no indication as to when it originated.
My Favorite IDIOM Is, When Pigs Fly.
Idiom
cold figures
This is not an idiom. When you see AS ___ AS ___ you are dealing with A Simile. They are comparing the temperature to a witch's supposedly cold body.
meaning of cold war
"The idiom 'that just kills' is hardly appropriate at a funeral."
To include an idiom in an example sentence, simply incorporate the idiom naturally into the sentence to convey a figurative meaning. For example, "She had a chip on her shoulder" is an idiom meaning she was easily offended or held a grudge.