Present participle; Past participle - spraining - sprained Present - sprain - sprain - sprains - sprain - sprain - sprain Past - sprained - sprained - sprained - sprained - sprained - sprained Future - will sprain - will sprain - will sprain - will sprain - will sprain - will sprain Present conditional - would sprain - would sprain - would sprain - would sprain - would sprain - would sprain Present Perfect - have sprained - have sprained - has sprained - have sprained - have sprained - have sprained Past Perfect - had sprained - had sprained - had sprained - had sprained - had sprained - had sprained Future Perfect - will have sprained - will have sprained - will have sprained - will have sprained - will have sprained - will have sprained Past conditional - would have sprained - would have sprained - would have sprained - would have sprained - would have sprained - would have sprained Imperative - - - sprain - - - - - - - -