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