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