Slipped

He slipped and used a curse word in front of his grandmother.

The papers slipped out of the folder and scattered across the desk.

He slipped his arm around her waist and guided her through the crowded dance floor.

She slipped and made an error in her calculations, resulting in an incorrect answer.

The package slipped from the delivery driver's hands and tumbled down the steps.

He slipped the ring onto her finger, asking her to marry him.

His physical condition slipped after he stopped exercising.