Irregular verb: lie - lay - lain
Simple form | V-ing form |
I must lie you must lie he must lie we must lie you must lie they must lie | I must be lying you must be lying he must be lying we must be lying you must be lying they must be lying |
Perfect | V-ing perfect |
I must have lain you must have lain he must have lain we must have lain you must have lain they must have lain | I must have been lying you must have been lying he must have been lying we must have been lying you must have been lying they must have been lying |
Simple form | V-ing form |
I mustn't lie you mustn't lie he mustn't lie we mustn't lie you mustn't lie they mustn't lie | I mustn't be lying you mustn't be lying he mustn't be lying we mustn't be lying you mustn't be lying they mustn't be lying |
Perfect | V-ing perfect |
I mustn't have lain you mustn't have lain he mustn't have lain we mustn't have lain you mustn't have lain they mustn't have lain | I mustn't have been lying you mustn't have been lying he mustn't have been lying we mustn't have been lying you mustn't have been lying they mustn't have been lying |
Simple form | V-ing form |
must I lie? must you lie? must he lie? must we lie? must you lie? must they lie? | must I be lying? must you be lying? must he be lying? must we be lying? must you be lying? must they be lying? |
Perfect | V-ing perfect |
must I have lain? must you have lain? must he have lain? must we have lain? must you have lain? must they have lain? | must I have been lying? must you have been lying? must he have been lying? must we have been lying? must you have been lying? must they have been lying? |
Simple form | V-ing form |
mustn't I lie? mustn't you lie? mustn't he lie? mustn't we lie? mustn't you lie? mustn't they lie? | mustn't I be lying? mustn't you be lying? mustn't he be lying? mustn't we be lying? mustn't you be lying? mustn't they be lying? |
Perfect | V-ing perfect |
mustn't I have lain? mustn't you have lain? mustn't he have lain? mustn't we have lain? mustn't you have lain? mustn't they have lain? | mustn't I have been lying? mustn't you have been lying? mustn't he have been lying? mustn't we have been lying? mustn't you have been lying? mustn't they have been lying? |