Present participle; Past participle - frosting - frosted Present - frost - frost - frosts - frost - frost - frost Past - frosted - frosted - frosted - frosted - frosted - frosted Future - will frost - will frost - will frost - will frost - will frost - will frost Present conditional - would frost - would frost - would frost - would frost - would frost - would frost Present Perfect - have frosted - have frosted - has frosted - have frosted - have frosted - have frosted Past Perfect - had frosted - had frosted - had frosted - had frosted - had frosted - had frosted Future Perfect - will have frosted - will have frosted - will have frosted - will have frosted - will have frosted - will have frosted Past conditional - would have frosted - would have frosted - would have frosted - would have frosted - would have frosted - would have frosted Imperative - - - frost - - - - - - - -