Present participle; Past participle - hammering - hammered Present - hammer - hammer - hammers - hammer - hammer - hammer Past - hammered - hammered - hammered - hammered - hammered - hammered Future - will hammer - will hammer - will hammer - will hammer - will hammer - will hammer Present conditional - would hammer - would hammer - would hammer - would hammer - would hammer - would hammer Present Perfect - have hammered - have hammered - has hammered - have hammered - have hammered - have hammered Past Perfect - had hammered - had hammered - had hammered - had hammered - had hammered - had hammered Future Perfect - will have hammered - will have hammered - will have hammered - will have hammered - will have hammered - will have hammered Past conditional - would have hammered - would have hammered - would have hammered - would have hammered - would have hammered - would have hammered Imperative - - - hammer - - - - - - - -