English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
BLUE or BLUES?
It looks like you’ve got the ~blue~ (nonstandard).
It looks like you’ve got the blues (standard).
Feelings of melancholy, sadness, or depression are called the blues.
One day, out of the ~blues~ , she announced that she was leaving (nonstandard).
One day, out of the blue , she announced that she was leaving (standard). If something happens out of the blue, it is completely unexpected.
GAB
Cool!