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