Yes, But you think that you write a right Question formula ?
it is must for me as a sentence right or wrong
it is must for me
Susan's keen eyes could see the smallest details
A knife is a keen tool that is dangerous for kids to play with.
Roy was very keen for apples today.
No, the correct phrase is "keen on doing something" without "to." For example, you would say, "I am keen on learning new languages." Using "to" in this context is grammatically incorrect.
The old man has gone off for holiday but he seem keen about his return
He takes a kee interset
"Keen" is and adjective, used to describe something as sharp or acute. "The sword had a keen edge." "He was a man of keen intellect." It can also be used to express enthusiasm. "He was keen to learn another language."
Keen is an adjective. It is used to describe a noun or a pronoun as sharp, or finely sharpened. Examples include a keen edge, keen wind, keen eyes, keen mind.
The yearbook editor has a keen eye for detail.
Most likely because it is dufficult to comprehend that as you are reading and learning about it, it is happening right now, even as you read this sentence.