Can i complete gta v single player missions in online mode?

Grand Theft Auto Online is a separate, multiplayer component of Grand Theft Auto V that allows up to 30 players to explore the same open world of San Andreas. The online mode features its own missions, heists, and progression systems. There is no evidence in the provided source that the single-player storyline missions from the base game can be accessed or completed inside the online environment. Consequently, players cannot complete the single-player missions while in GTA Online.