Present participle; Past participle - allowing - allowed Present - allow - allow - allows - allow - allow - allow Past - allowed - allowed - allowed - allowed - allowed - allowed Future - will allow - will allow - will allow - will allow - will allow - will allow Present conditional - would allow - would allow - would allow - would allow - would allow - would allow Present Perfect - have allowed - have allowed - has allowed - have allowed - have allowed - have allowed Past Perfect - had allowed - had allowed - had allowed - had allowed - had allowed - had allowed Future Perfect - will have allowed - will have allowed - will have allowed - will have allowed - will have allowed - will have allowed Past conditional - would have allowed - would have allowed - would have allowed - would have allowed - would have allowed - would have allowed Imperative - - - allow - - - - - - - -