Present participle; Past participle - retching - retched Present - retch - retch - retches - retch - retch - retch Past - retched - retched - retched - retched - retched - retched Future - will retch - will retch - will retch - will retch - will retch - will retch Present conditional - would retch - would retch - would retch - would retch - would retch - would retch Present Perfect - have retched - have retched - has retched - have retched - have retched - have retched Past Perfect - had retched - had retched - had retched - had retched - had retched - had retched Future Perfect - will have retched - will have retched - will have retched - will have retched - will have retched - will have retched Past conditional - would have retched - would have retched - would have retched - would have retched - would have retched - would have retched Imperative - - - retch - - - - - - - -