The sentence "I have never counted" is correct and usable in written English.
You can use it in a variety of contexts, such as when talking about a physical activity or a task that you have not attempted before. For example, "I have never counted how many steps it takes to get to the top of the mountain, but I'm ready to find out."
While not quite subscribing to GK Chesterton's observation that golf is merely an expensive way of playing marbles, I have never counted those who hit a stationary ball with a stick among the greatest of sportsmen, Rory McIlroy's notable achievements notwithstanding.
I know I am blessed, because I have never counted the minutes until the doctor came and gave me bad news.
I have never counted the minutes after an accident waiting for the ambulance, and I have certainly never waited outside a school to find out whether or not my kindergartener has been gunned down by a crazy person.
"I've never counted them.
"I've never counted Senator Clinton out," he said.
I've never counted everything, but I do have it in a database.
I've never counted them, but I know where they all are – they're organised by author and cuisine.
I've never counted my cards, but it's not that big of a collection as collections go.
Several nights ago as I was driving home from my studio in Culver City to my apartment in Koreatown, I realized that I had never counted out loud to 1,000.
I've never counted my friends – I don't trust the number I have on Facebook because some of them are relations, who have been forced to be my mates, and one of them is a guy who helped me move house in 2007 – but I can confirm that as I approach 30, my friendships are of the highest quality.
But there were positive surprises as well, such as the decision to make available a complete collection of my Philips/Decca recordings, a decision that stunned me because I had never counted the sheer number of CDs (114 in all) I seemed to be responsible for.
