Present participle; Past participle - inquiring - inquired Present - inquire - inquire - inquires - inquire - inquire - inquire Past - inquired - inquired - inquired - inquired - inquired - inquired Future - will inquire - will inquire - will inquire - will inquire - will inquire - will inquire Present conditional - would inquire - would inquire - would inquire - would inquire - would inquire - would inquire Present Perfect - have inquired - have inquired - has inquired - have inquired - have inquired - have inquired Past Perfect - had inquired - had inquired - had inquired - had inquired - had inquired - had inquired Future Perfect - will have inquired - will have inquired - will have inquired - will have inquired - will have inquired - will have inquired Past conditional - would have inquired - would have inquired - would have inquired - would have inquired - would have inquired - would have inquired Imperative - - - inquire - - - - - - - -