Regular verb: unbutton - unbuttoned - unbuttoned
Simple form | V-ing form |
I can unbutton you can unbutton he can unbutton we can unbutton you can unbutton they can unbutton | I can be unbuttoning you can be unbuttoning he can be unbuttoning we can be unbuttoning you can be unbuttoning they can be unbuttoning |
Perfect | V-ing perfect |
I can have unbuttoned you can have unbuttoned he can have unbuttoned we can have unbuttoned you can have unbuttoned they can have unbuttoned | I can have been unbuttoning you can have been unbuttoning he can have been unbuttoning we can have been unbuttoning you can have been unbuttoning they can have been unbuttoning |
Simple form | V-ing form |
I can't unbutton you can't unbutton he can't unbutton we can't unbutton you can't unbutton they can't unbutton | I can't be unbuttoning you can't be unbuttoning he can't be unbuttoning we can't be unbuttoning you can't be unbuttoning they can't be unbuttoning |
Perfect | V-ing perfect |
I can't have unbuttoned you can't have unbuttoned he can't have unbuttoned we can't have unbuttoned you can't have unbuttoned they can't have unbuttoned | I can't have been unbuttoning you can't have been unbuttoning he can't have been unbuttoning we can't have been unbuttoning you can't have been unbuttoning they can't have been unbuttoning |
Simple form | V-ing form |
can I unbutton? can you unbutton? can he unbutton? can we unbutton? can you unbutton? can they unbutton? | can I be unbuttoning? can you be unbuttoning? can he be unbuttoning? can we be unbuttoning? can you be unbuttoning? can they be unbuttoning? |
Perfect | V-ing perfect |
can I have unbuttoned? can you have unbuttoned? can he have unbuttoned? can we have unbuttoned? can you have unbuttoned? can they have unbuttoned? | can I have been unbuttoning? can you have been unbuttoning? can he have been unbuttoning? can we have been unbuttoning? can you have been unbuttoning? can they have been unbuttoning? |
Simple form | V-ing form |
can't I unbutton? can't you unbutton? can't he unbutton? can't we unbutton? can't you unbutton? can't they unbutton? | can't I be unbuttoning? can't you be unbuttoning? can't he be unbuttoning? can't we be unbuttoning? can't you be unbuttoning? can't they be unbuttoning? |
Perfect | V-ing perfect |
can't I have unbuttoned? can't you have unbuttoned? can't he have unbuttoned? can't we have unbuttoned? can't you have unbuttoned? can't they have unbuttoned? | can't I have been unbuttoning? can't you have been unbuttoning? can't he have been unbuttoning? can't we have been unbuttoning? can't you have been unbuttoning? can't they have been unbuttoning? |