Present participle; Past participle - ducting - ducted Present - duct - duct - ducts - duct - duct - duct Past - ducted - ducted - ducted - ducted - ducted - ducted Future - will duct - will duct - will duct - will duct - will duct - will duct Present conditional - would duct - would duct - would duct - would duct - would duct - would duct Present Perfect - have ducted - have ducted - has ducted - have ducted - have ducted - have ducted Past Perfect - had ducted - had ducted - had ducted - had ducted - had ducted - had ducted Future Perfect - will have ducted - will have ducted - will have ducted - will have ducted - will have ducted - will have ducted Past conditional - would have ducted - would have ducted - would have ducted - would have ducted - would have ducted - would have ducted Imperative - - - duct - - - - - - - -