1) I don’t remember (seeing) Mitch at the basketball tournament. Perhaps he was ill.
2) He regrets (arguing) with the referee as it resulted in his being sent off the pitch.
3) The cyclist had to stop (to mend) a flat tyre during the race.
4) If she tried (using) a lighter racquet, her game might improve.
5) I regret (to inform) you that your injury will prevent you from playing any more matches this season.
6) He means (to move) to Glasgow.
7) The surgeon tried (to save) the patient.
8) Did you remember (to tell) Chris to bring his skates with him? We’re going to the ice rink after work.
9) You should stop (smoking) if you want to enter the marathon next year.