1. I want to try surfing someday

→ I would try surfing someday

would = want to: muốn

would + V(Inf)

try + V-ing

2. My advice for you is to eat more fruit and vegetables

→ You should eat more fruit and vegetables

My advice for you: Lời khuyên của tôi dành cho bạn = You should : bạn nên

should + V(Inf)

`1` I would like to try surfing some day 

`=>` want + N/to V = would like + N/to V

`=>` Đưa ra lời yêu cầu , đề nghị làm gì(would like dùng lịch sự hơn want) 

`2` You should eat more fruit and vegetables

`=>` to V chỉ mục đích 

`=>` should + V nguyên : nên làm gì

`=>` Đưa ra lời khuyên cho ai đó nên làm việc gì