如果你在英语课上努力学习，你可以说:

"I tried my best in the Engpsh class competition."

"I gave it my all in the Engpsh class competition."

"I put in a lot of effort in the Engpsh class competition."

"I really tried hard in the Engpsh class competition."

这些都是表示你在英语课上尽力的好方法。