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