Present participle; Past participle - crinkling - crinkled Present - crinkle - crinkle - crinkles - crinkle - crinkle - crinkle Past - crinkled - crinkled - crinkled - crinkled - crinkled - crinkled Future - will crinkle - will crinkle - will crinkle - will crinkle - will crinkle - will crinkle Present conditional - would crinkle - would crinkle - would crinkle - would crinkle - would crinkle - would crinkle Present Perfect - have crinkled - have crinkled - has crinkled - have crinkled - have crinkled - have crinkled Past Perfect - had crinkled - had crinkled - had crinkled - had crinkled - had crinkled - had crinkled Future Perfect - will have crinkled - will have crinkled - will have crinkled - will have crinkled - will have crinkled - will have crinkled Past conditional - would have crinkled - would have crinkled - would have crinkled - would have crinkled - would have crinkled - would have crinkled Imperative - - - crinkle - - - - - - - -