Present participle; Past participle - forming - formed Present - form - form - forms - form - form - form Past - formed - formed - formed - formed - formed - formed Future - will form - will form - will form - will form - will form - will form Present conditional - would form - would form - would form - would form - would form - would form Present Perfect - have formed - have formed - has formed - have formed - have formed - have formed Past Perfect - had formed - had formed - had formed - had formed - had formed - had formed Future Perfect - will have formed - will have formed - will have formed - will have formed - will have formed - will have formed Past conditional - would have formed - would have formed - would have formed - would have formed - would have formed - would have formed Imperative - - - form - - - - - - - -