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