Present participle; Past participle - celebrating - celebrated Present - celebrate - celebrate - celebrates - celebrate - celebrate - celebrate Past - celebrated - celebrated - celebrated - celebrated - celebrated - celebrated Future - will celebrate - will celebrate - will celebrate - will celebrate - will celebrate - will celebrate Present conditional - would celebrate - would celebrate - would celebrate - would celebrate - would celebrate - would celebrate Present Perfect - have celebrated - have celebrated - has celebrated - have celebrated - have celebrated - have celebrated Past Perfect - had celebrated - had celebrated - had celebrated - had celebrated - had celebrated - had celebrated Future Perfect - will have celebrated - will have celebrated - will have celebrated - will have celebrated - will have celebrated - will have celebrated Past conditional - would have celebrated - would have celebrated - would have celebrated - would have celebrated - would have celebrated - would have celebrated Imperative - - - celebrate - - - - - - - -