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