hard or hardly?
Hard as an adverb means with great effort: work hard. Hardly means almost not: I could hardly hear. It is not the adverb of hard.
In a sentence
He worked hard all week.
I could hardly hear what she said.
Hard as an adverb means with great effort: work hard. Hardly means almost not: I could hardly hear. It is not the adverb of hard.
He worked hard all week.
I could hardly hear what she said.