Regular verb: better - bettered - bettered
Simple form | V-ing form |
I must better you must better she must better we must better you must better they must better | I must be bettering you must be bettering she must be bettering we must be bettering you must be bettering they must be bettering |
Perfect | V-ing perfect |
I must have bettered you must have bettered she must have bettered we must have bettered you must have bettered they must have bettered | I must have been bettering you must have been bettering she must have been bettering we must have been bettering you must have been bettering they must have been bettering |
Simple form | V-ing form |
I mustn't better you mustn't better she mustn't better we mustn't better you mustn't better they mustn't better | I mustn't be bettering you mustn't be bettering she mustn't be bettering we mustn't be bettering you mustn't be bettering they mustn't be bettering |
Perfect | V-ing perfect |
I mustn't have bettered you mustn't have bettered she mustn't have bettered we mustn't have bettered you mustn't have bettered they mustn't have bettered | I mustn't have been bettering you mustn't have been bettering she mustn't have been bettering we mustn't have been bettering you mustn't have been bettering they mustn't have been bettering |
Simple form | V-ing form |
must I better? must you better? must she better? must we better? must you better? must they better? | must I be bettering? must you be bettering? must she be bettering? must we be bettering? must you be bettering? must they be bettering? |
Perfect | V-ing perfect |
must I have bettered? must you have bettered? must she have bettered? must we have bettered? must you have bettered? must they have bettered? | must I have been bettering? must you have been bettering? must she have been bettering? must we have been bettering? must you have been bettering? must they have been bettering? |
Simple form | V-ing form |
mustn't I better? mustn't you better? mustn't she better? mustn't we better? mustn't you better? mustn't they better? | mustn't I be bettering? mustn't you be bettering? mustn't she be bettering? mustn't we be bettering? mustn't you be bettering? mustn't they be bettering? |
Perfect | V-ing perfect |
mustn't I have bettered? mustn't you have bettered? mustn't she have bettered? mustn't we have bettered? mustn't you have bettered? mustn't they have bettered? | mustn't I have been bettering? mustn't you have been bettering? mustn't she have been bettering? mustn't we have been bettering? mustn't you have been bettering? mustn't they have been bettering? |