Present participle; Past participle - walling - walled Present - wall - wall - walls - wall - wall - wall Past - walled - walled - walled - walled - walled - walled Future - will wall - will wall - will wall - will wall - will wall - will wall Present conditional - would wall - would wall - would wall - would wall - would wall - would wall Present Perfect - have walled - have walled - has walled - have walled - have walled - have walled Past Perfect - had walled - had walled - had walled - had walled - had walled - had walled Future Perfect - will have walled - will have walled - will have walled - will have walled - will have walled - will have walled Past conditional - would have walled - would have walled - would have walled - would have walled - would have walled - would have walled Imperative - - - wall - - - - - - - -