1 John 1 2
And the Life [an aspect of His being] was revealed (made manifest, demonstrated), and we saw [as eyewitnesses] and are testifying to and declare to you the Life, the eternal Life [in Him] Who already existed with the Father and Who [actually] was made visible (was revealed) to us [His followers].
Compare with other 3 random translations
ASV 1 John 1:2(and the life was manifested, and we have seen, and bear witness, and declare unto you the life, the eternal life, which was with the Father, and was manifested unto us);
NLT 1 John 1:2This one who is life itself was revealed to us, and we have seen him. And now we testify and proclaim to you that he is the one who is eternal life. He was with the Father, and then he was revealed to us.
ERV 1 John 1:2Yes, the one who is life was shown to us. We saw him, and so we can tell others about him. We now tell you about him. He is the eternal life that was with God the Father and was shown to us.