Present participle; Past participle - nagging - nagged Present - nag - nag - nags - nag - nag - nag Past - nagged - nagged - nagged - nagged - nagged - nagged Future - will nag - will nag - will nag - will nag - will nag - will nag Present conditional - would nag - would nag - would nag - would nag - would nag - would nag Present Perfect - have nagged - have nagged - has nagged - have nagged - have nagged - have nagged Past Perfect - had nagged - had nagged - had nagged - had nagged - had nagged - had nagged Future Perfect - will have nagged - will have nagged - will have nagged - will have nagged - will have nagged - will have nagged Past conditional - would have nagged - would have nagged - would have nagged - would have nagged - would have nagged - would have nagged Imperative - - - nag - - - - - - - -