在英语中，可以用 "I wish (someone) a happy (occasion)" 来表达 "祝谁过得开心" 的意思。其中，"(someone)" 是代替具体的人名的代词，"(occasion)" 是指特定的场合或时机。
例如：
I wish you a happy birthday. (祝你生日快乐。)
I wish you and your family a happy hopday season. (祝你和你的家人节日快乐。)
I wish you a happy and successful new year. (祝你新年快乐且成功。)
这种表达方式源自英语中常用的祝愿他人幸福和成功的说法。在英语中，祝愿他人幸福的常用说法还有 "I hope (someone) has a great (occasion)" 和 "I hope (someone) enjoys (themselves/something)".
例如：
I hope you have a great day. (祝你今天过得愉快。)
I hope you enjoy your vacation. (祝你度假愉快。)
I hope you enjoy the party. (祝你聚会愉快。)