Hi, I have a question about the time expression as in the example below. Last Wednesday, I visited my grandparents' house. I haven' t seen them for some time, so I wanted to write it on Facebook. ex) It was the first time to see them during three years. ex2) It was the first time to see them for three years. ※I want to say that I haven't seen grandparents for three years. How do these examples sound like to you? If not, please tell me what to say to convey the same meaning as ※? Thank you in advance.