May I know your concern, sir?
I have a lot of concern for your health.
It has come to my concern that you might be dilusional.
Her concern for the puppy was touching.One concern was the leaking roof.
Example sentence - His concern for his health led him to the office of the local osteopath.
Concern... it depends on the usage of the word in a sentence. A direct translation would be "concierne" but I doubt that is the word you seek. For a sentence meaning " I am concerned" a more appropiate word would be "preocupado."
It was the uncertainty about the future that was one of the greatest concern to the immigrants.
I have a feeling of solicitude towards my parents.
saftey,passengers,concern,pilot
His best attribute is his care and concern for others.
"His infatuation with all things Star Trek was of concern to his friends."
the piece of wood willfloat on the water
i was told never to investigate any issue that does not concern me again
The welfare of the people should be an important concern for any government.