Present participle; Past participle - constructing - constructed Present - construct - construct - constructs - construct - construct - construct Past - constructed - constructed - constructed - constructed - constructed - constructed Future - will construct - will construct - will construct - will construct - will construct - will construct Present conditional - would construct - would construct - would construct - would construct - would construct - would construct Present Perfect - have constructed - have constructed - has constructed - have constructed - have constructed - have constructed Past Perfect - had constructed - had constructed - had constructed - had constructed - had constructed - had constructed Future Perfect - will have constructed - will have constructed - will have constructed - will have constructed - will have constructed - will have constructed Past conditional - would have constructed - would have constructed - would have constructed - would have constructed - would have constructed - would have constructed Imperative - - - construct - - - - - - - -