https://wol.jw.org/en/wol/d/r1/lp-e/1101989276
Your link explanation on John 8:58 doesn't help you a bit It reads,
RS reads: “Jesus said to them, ‘Truly, truly, I say to you, before Abraham was, I am [Greek, e·goʹ ei·miʹ].’” (NE, KJ, TEV, JB, NAB all read “I am,” some even using capital letters to convey the idea of a title. Thus they endeavor to connect the expression with Exodus 3:14, where, according to their rendering, God refers to himself by the title “I Am.”) However, in NW the latter part of John 8:58 reads: “Before Abraham came into existence, I have been.” (The same idea is conveyed by the wording in AT, Mo, CBW, and SE.)
Which rendering agrees with the context? The question of the Jews (verse 57) to which Jesus was replying had to do with age, not identity. Jesus’ reply logically dealt with his age, the length of his existence. Interestingly, no effort is ever made to apply e·goʹ ei·miʹ as a title to the holy spirit.
Says A Grammar of the Greek New Testament in the Light of Historical Research, by A. T. Robertson: “The verb [ei·miʹ] . . . Sometimes it does express existence as a predicate like any other verb, as in [e·goʹ ei·miʹ] (Jo. 8:58).”—Nashville, Tenn.; 1934, p. 394.
See also NW appendix, 1984 Reference edition, pp. 1582, 1583. (end of quote).
