Present participle; Past participle - coinciding - coincided Present - coincide - coincide - coincides - coincide - coincide - coincide Past - coincided - coincided - coincided - coincided - coincided - coincided Future - will coincide - will coincide - will coincide - will coincide - will coincide - will coincide Present conditional - would coincide - would coincide - would coincide - would coincide - would coincide - would coincide Present Perfect - have coincided - have coincided - has coincided - have coincided - have coincided - have coincided Past Perfect - had coincided - had coincided - had coincided - had coincided - had coincided - had coincided Future Perfect - will have coincided - will have coincided - will have coincided - will have coincided - will have coincided - will have coincided Past conditional - would have coincided - would have coincided - would have coincided - would have coincided - would have coincided - would have coincided Imperative - - - coincide - - - - - - - -