Ibrahimovic is a free agent at the end of the season and Ligue 1's leading goalscorer has not yet agreed a contract extension with PSG.
The 34-year-old's contract status has alerted a number of clubs, including Manchester United and Arsenal, as well as teams in the United States.
Verratti, though, is still hopeful of playing alongside the Sweden international next season.
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"I always tell him to stay, but he never answers!" Verratti told RMC Sport.
"He and the club will see. I, like all my team-mates, want him to stay because he's had an extraordinary season. I don't see anyone stronger than him.
"He'll make a decision soon."
Ibrahimovic has scored 34 goals in Ligue 1 this season, while he has 44 in all competitions.