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