Present participle; Past participle - earthing - earthed Present - earth - earth - earths - earth - earth - earth Past - earthed - earthed - earthed - earthed - earthed - earthed Future - will earth - will earth - will earth - will earth - will earth - will earth Present conditional - would earth - would earth - would earth - would earth - would earth - would earth Present Perfect - have earthed - have earthed - has earthed - have earthed - have earthed - have earthed Past Perfect - had earthed - had earthed - had earthed - had earthed - had earthed - had earthed Future Perfect - will have earthed - will have earthed - will have earthed - will have earthed - will have earthed - will have earthed Past conditional - would have earthed - would have earthed - would have earthed - would have earthed - would have earthed - would have earthed Imperative - - - earth - - - - - - - -