Did you see him yesterday？（英译中)

I remember seeing him once.（英译中)

Did you come to London for the purpose of seeing your family, or for business purposes？（英译中)

I saw him only yesterday.（英译中)

Did you notice anything peculiar？（英译中)

They looked forward very much to seeing him again.（英译中)

I see what you mean.（英译中)