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