Present participle; Past participle - callousing - calloused Present - callous - callous - callouses - callous - callous - callous Past - calloused - calloused - calloused - calloused - calloused - calloused Future - will callous - will callous - will callous - will callous - will callous - will callous Present conditional - would callous - would callous - would callous - would callous - would callous - would callous Present Perfect - have calloused - have calloused - has calloused - have calloused - have calloused - have calloused Past Perfect - had calloused - had calloused - had calloused - had calloused - had calloused - had calloused Future Perfect - will have calloused - will have calloused - will have calloused - will have calloused - will have calloused - will have calloused Past conditional - would have calloused - would have calloused - would have calloused - would have calloused - would have calloused - would have calloused Imperative - - - callous - - - - - - - -