Anticipate my next move?

Hi Support

How can I anticipate my next move whilst playing a live game against an opponent, can I practice or custom play the next move on the computer, before I actually commit to a move? 

Can you do it here at Chess.com or are there alternative websites that you can play out a game to see best options before making a blundering move?

You can check after the end of the game, analyzing your moves. You can’t use any “blunde check” in a game 

Sorry you mis-understood, I want to see what are the best moves to make in advance to making a move, whilst playing an opponent, not analyze afterwards.

You can’t ! It is cheating...

you can’t use any help while playing a game with an opponent !

check this https://support.chess.com/article/648-what-do-i-need-to-know-about-fair-play-on-chess-com

Okay thanks, now I learnt something.  Great!