Present participle; Past participle - choppering - choppered Present - chopper - chopper - choppers - chopper - chopper - chopper Past - choppered - choppered - choppered - choppered - choppered - choppered Future - will chopper - will chopper - will chopper - will chopper - will chopper - will chopper Present conditional - would chopper - would chopper - would chopper - would chopper - would chopper - would chopper Present Perfect - have choppered - have choppered - has choppered - have choppered - have choppered - have choppered Past Perfect - had choppered - had choppered - had choppered - had choppered - had choppered - had choppered Future Perfect - will have choppered - will have choppered - will have choppered - will have choppered - will have choppered - will have choppered Past conditional - would have choppered - would have choppered - would have choppered - would have choppered - would have choppered - would have choppered Imperative - - - chopper - - - - - - - -