也许,这个礼物是你朋友去年送给你的,英语翻译

Perhaps this is a gift that your friend gave to you last year.

这里用定语从句 ， 先行词是 gift， that从句来修饰它。 that可以省略，也可以用which， 因为这里是充当从句宾语，分为两个分句的话可以看成 This is a gift, 和your friend gave the gift to you last year 从句。

Maybe/Perhaps this present/gift is the one that your friend gave you last year.

Perhaps this is a gift your friend gave you last year.

Maybe the present you give me is an old one from your friend last year.

To some extents,this is an old gift/present your friend gave you last year.

Perhaps/Maybe this is a gift from your friends last year.

Perhaps this is a gift you give your friends last year.