Present participle; Past participle - cratering - cratered Present - crater - crater - craters - crater - crater - crater Past - cratered - cratered - cratered - cratered - cratered - cratered Future - will crater - will crater - will crater - will crater - will crater - will crater Present conditional - would crater - would crater - would crater - would crater - would crater - would crater Present Perfect - have cratered - have cratered - has cratered - have cratered - have cratered - have cratered Past Perfect - had cratered - had cratered - had cratered - had cratered - had cratered - had cratered Future Perfect - will have cratered - will have cratered - will have cratered - will have cratered - will have cratered - will have cratered Past conditional - would have cratered - would have cratered - would have cratered - would have cratered - would have cratered - would have cratered Imperative - - - crater - - - - - - - -