Present participle; Past participle - growling - growled Present - growl - growl - growls - growl - growl - growl Past - growled - growled - growled - growled - growled - growled Future - will growl - will growl - will growl - will growl - will growl - will growl Present conditional - would growl - would growl - would growl - would growl - would growl - would growl Present Perfect - have growled - have growled - has growled - have growled - have growled - have growled Past Perfect - had growled - had growled - had growled - had growled - had growled - had growled Future Perfect - will have growled - will have growled - will have growled - will have growled - will have growled - will have growled Past conditional - would have growled - would have growled - would have growled - would have growled - would have growled - would have growled Imperative - - - growl - - - - - - - -