Present participle; Past participle - gaining - gained Present - gain - gain - gains - gain - gain - gain Past - gained - gained - gained - gained - gained - gained Future - will gain - will gain - will gain - will gain - will gain - will gain Present conditional - would gain - would gain - would gain - would gain - would gain - would gain Present Perfect - have gained - have gained - has gained - have gained - have gained - have gained Past Perfect - had gained - had gained - had gained - had gained - had gained - had gained Future Perfect - will have gained - will have gained - will have gained - will have gained - will have gained - will have gained Past conditional - would have gained - would have gained - would have gained - would have gained - would have gained - would have gained Imperative - - - gain - - - - - - - -