Firstly, I have made a sentence here:
"In any era, a human can never live two lifes."
Is it grammatically okay?
Then, I would like to make some change on it thus:
"Never in any era can a human live two lifes."
Am I making the change right?

"In any era, a human can never live two lifes."
Is it grammatically okay?
Then, I would like to make some change on it thus:
"Never in any era can a human live two lifes."
Am I making the change right?