Present participle; Past participle - cramming - crammed Present - cram - cram - crams - cram - cram - cram Past - crammed - crammed - crammed - crammed - crammed - crammed Future - will cram - will cram - will cram - will cram - will cram - will cram Present conditional - would cram - would cram - would cram - would cram - would cram - would cram Present Perfect - have crammed - have crammed - has crammed - have crammed - have crammed - have crammed Past Perfect - had crammed - had crammed - had crammed - had crammed - had crammed - had crammed Future Perfect - will have crammed - will have crammed - will have crammed - will have crammed - will have crammed - will have crammed Past conditional - would have crammed - would have crammed - would have crammed - would have crammed - would have crammed - would have crammed Imperative - - - cram - - - - - - - -