Present participle; Past participle - sniggering - sniggered Present - snigger - snigger - sniggers - snigger - snigger - snigger Past - sniggered - sniggered - sniggered - sniggered - sniggered - sniggered Future - will snigger - will snigger - will snigger - will snigger - will snigger - will snigger Present conditional - would snigger - would snigger - would snigger - would snigger - would snigger - would snigger Present Perfect - have sniggered - have sniggered - has sniggered - have sniggered - have sniggered - have sniggered Past Perfect - had sniggered - had sniggered - had sniggered - had sniggered - had sniggered - had sniggered Future Perfect - will have sniggered - will have sniggered - will have sniggered - will have sniggered - will have sniggered - will have sniggered Past conditional - would have sniggered - would have sniggered - would have sniggered - would have sniggered - would have sniggered - would have sniggered Imperative - - - snigger - - - - - - - -