The Nets have been giving away the ball. And as a result, they’ve been giving away games. Turnovers have been a season-long problem for the Nets, having committed the fifth-most in the league. After a brief spell when it seemed they had made incremental improvement, they’ve started coughing the ball up again — and it is a huge reason they’ll bring a three-game slide into the Garden on Tuesday. “Yeah, it’s still too many,” coach Kenny Atkinson acknowledged. “Just basic passing, basic fundamentals. We have to be better, more accurate with our passes. It’s been an issue. “It’s crept up again. We addressed it earlier in the year. I thought we did a good job the first part of the year taking care of the ball. Now, we’re slipping again. Some of it is change of lineups, but we’ve got to be better fundamentally.” Changing backcourt lineups has contributed to turning over the ball, especially Saturday in Minneapolis, where point guard D’Angelo Russell (knee surgery) was rested and backup point guard Caris LeVert was a late scratch with a sore groin. The Nets committed 10 turnovers less than 14 minutes into the game, which Minnesota turned into 16 points, as they fell into a 37-11 hole they never climbed out of.