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