I have known him since he was a baby.とは 意味・読み方・使い方

I have known him since he was a baby.

I have known him since he was a child [since (his) childhood].

I have known him from childhood.

I have known about him since I was a child.

I've known about him since he was a child.

I have known him ever since he was a child.

I have known him from a child.

I have known him since he was small.

I've known him ever since he was a child.

I have known her since she was a baby.

I have known her since she was a little girl.

I have known him since he was a child―（慣用語法は）―I have known him from a child.

I have known him since I was a student.

I've known him since he was a child.

I have known him since he was a child.

I have known her since she was a child.

I have known her since she was a little girl.

I've known Jim ever since we were children.

I've known Jim since my childhood.

I've known Jim since I was a child.

I've known Jim since we were children.

I have known Jim ever since we are children.

I've known John since he was a child.

I have known him since our school-days.

I know who he is.

I used to know him.

I came to know him when I was in the University.

I have been friends with him ever since we were kindergarteners.

He and I have been friends since childhood.

I have known him ever since we were kindergarteners.