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