Present participle; Past participle - chirruping - chirruped Present - chirrup - chirrup - chirrups - chirrup - chirrup - chirrup Past - chirruped - chirruped - chirruped - chirruped - chirruped - chirruped Future - will chirrup - will chirrup - will chirrup - will chirrup - will chirrup - will chirrup Present conditional - would chirrup - would chirrup - would chirrup - would chirrup - would chirrup - would chirrup Present Perfect - have chirruped - have chirruped - has chirruped - have chirruped - have chirruped - have chirruped Past Perfect - had chirruped - had chirruped - had chirruped - had chirruped - had chirruped - had chirruped Future Perfect - will have chirruped - will have chirruped - will have chirruped - will have chirruped - will have chirruped - will have chirruped Past conditional - would have chirruped - would have chirruped - would have chirruped - would have chirruped - would have chirruped - would have chirruped Imperative - - - chirrup - - - - - - - -