Present participle; Past participle - sinning - sinned Present - sin - sin - sins - sin - sin - sin Past - sinned - sinned - sinned - sinned - sinned - sinned Future - will sin - will sin - will sin - will sin - will sin - will sin Present conditional - would sin - would sin - would sin - would sin - would sin - would sin Present Perfect - have sinned - have sinned - has sinned - have sinned - have sinned - have sinned Past Perfect - had sinned - had sinned - had sinned - had sinned - had sinned - had sinned Future Perfect - will have sinned - will have sinned - will have sinned - will have sinned - will have sinned - will have sinned Past conditional - would have sinned - would have sinned - would have sinned - would have sinned - would have sinned - would have sinned Imperative - - - sin - - - - - - - -