Alexander-Arnold's campaign was hit by injury and form inconsistency.
But he told liverpoolfc.com: "Of course it's never nice to be injured. You want to play as many games as you can and help the team, but sometimes these things happen.
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"It was a tough time, it was one that taught me to be patient and a time that was difficult. It's never nice for any player to be injured but it just makes you stronger, appreciate the times when you're fit and able to play games."
He added: "It was a good season, built on last season, got better as a team, challenged for the title, took it far and we improved.
"Any time you improve means that it's a good season. Take the positives and move forward and hopefully again next season."