I learned "Hello, how are you?" "I'm fine, thank you. And you?" "I'm fine too, thank you".
After that, "This is a pen. that is my house",,etc when I was a junior high school student.
I think all Japanese people learned these phrases in their school.
I've remembered that it was difficult for me to understand the past perfect tense.
"I've lived here for three years"
It means 私はここで３年間生活しています。
I didn't know the difference between "I live here for,,," and "I've lived here for,,,,".
(Maybe I don't still understand it well)