Present participle; Past participle - sagging - sagged Present - sag - sag - sags - sag - sag - sag Past - sagged - sagged - sagged - sagged - sagged - sagged Future - will sag - will sag - will sag - will sag - will sag - will sag Present conditional - would sag - would sag - would sag - would sag - would sag - would sag Present Perfect - have sagged - have sagged - has sagged - have sagged - have sagged - have sagged Past Perfect - had sagged - had sagged - had sagged - had sagged - had sagged - had sagged Future Perfect - will have sagged - will have sagged - will have sagged - will have sagged - will have sagged - will have sagged Past conditional - would have sagged - would have sagged - would have sagged - would have sagged - would have sagged - would have sagged Imperative - - - sag - - - - - - - -