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