Of course you can but you must meet the requirements given youtube. this requirement to produce that from youtube. all new and old channels on YouTube that have not reached 4,000 hours of watch time and 1,000 subscribers over the past year will not be able to serve ads.

A number of YouTubers or YouTube channels that have not met the requirement reported having received an e-mail containing information about the termination of monetization until the specified conditions are reached. we are reviewed by the youtube party. if approved we will be given ads on our video