Regular verb: litter - littered - littered
Simple form | V-ing form |
I must litter you must litter he must litter we must litter you must litter they must litter | I must be littering you must be littering he must be littering we must be littering you must be littering they must be littering |
Perfect | V-ing perfect |
I must have littered you must have littered he must have littered we must have littered you must have littered they must have littered | I must have been littering you must have been littering he must have been littering we must have been littering you must have been littering they must have been littering |
Simple form | V-ing form |
I mustn't litter you mustn't litter he mustn't litter we mustn't litter you mustn't litter they mustn't litter | I mustn't be littering you mustn't be littering he mustn't be littering we mustn't be littering you mustn't be littering they mustn't be littering |
Perfect | V-ing perfect |
I mustn't have littered you mustn't have littered he mustn't have littered we mustn't have littered you mustn't have littered they mustn't have littered | I mustn't have been littering you mustn't have been littering he mustn't have been littering we mustn't have been littering you mustn't have been littering they mustn't have been littering |
Simple form | V-ing form |
must I litter? must you litter? must he litter? must we litter? must you litter? must they litter? | must I be littering? must you be littering? must he be littering? must we be littering? must you be littering? must they be littering? |
Perfect | V-ing perfect |
must I have littered? must you have littered? must he have littered? must we have littered? must you have littered? must they have littered? | must I have been littering? must you have been littering? must he have been littering? must we have been littering? must you have been littering? must they have been littering? |
Simple form | V-ing form |
mustn't I litter? mustn't you litter? mustn't he litter? mustn't we litter? mustn't you litter? mustn't they litter? | mustn't I be littering? mustn't you be littering? mustn't he be littering? mustn't we be littering? mustn't you be littering? mustn't they be littering? |
Perfect | V-ing perfect |
mustn't I have littered? mustn't you have littered? mustn't he have littered? mustn't we have littered? mustn't you have littered? mustn't they have littered? | mustn't I have been littering? mustn't you have been littering? mustn't he have been littering? mustn't we have been littering? mustn't you have been littering? mustn't they have been littering? |