Present participle; Past participle - stoning - stoned Present - stone - stone - stones - stone - stone - stone Past - stoned - stoned - stoned - stoned - stoned - stoned Future - will stone - will stone - will stone - will stone - will stone - will stone Present conditional - would stone - would stone - would stone - would stone - would stone - would stone Present Perfect - have stoned - have stoned - has stoned - have stoned - have stoned - have stoned Past Perfect - had stoned - had stoned - had stoned - had stoned - had stoned - had stoned Future Perfect - will have stoned - will have stoned - will have stoned - will have stoned - will have stoned - will have stoned Past conditional - would have stoned - would have stoned - would have stoned - would have stoned - would have stoned - would have stoned Imperative - - - stone - - - - - - - -