Present participle; Past participle - sacking - sacked Present - sack - sack - sacks - sack - sack - sack Past - sacked - sacked - sacked - sacked - sacked - sacked Future - will sack - will sack - will sack - will sack - will sack - will sack Present conditional - would sack - would sack - would sack - would sack - would sack - would sack Present Perfect - have sacked - have sacked - has sacked - have sacked - have sacked - have sacked Past Perfect - had sacked - had sacked - had sacked - had sacked - had sacked - had sacked Future Perfect - will have sacked - will have sacked - will have sacked - will have sacked - will have sacked - will have sacked Past conditional - would have sacked - would have sacked - would have sacked - would have sacked - would have sacked - would have sacked Imperative - - - sack - - - - - - - -