Regular verb: corroborate - corroborated - corroborated
Simple form | V-ing form |
I must corroborate you must corroborate she must corroborate we must corroborate you must corroborate they must corroborate | I must be corroborating you must be corroborating she must be corroborating we must be corroborating you must be corroborating they must be corroborating |
Perfect | V-ing perfect |
I must have corroborated you must have corroborated she must have corroborated we must have corroborated you must have corroborated they must have corroborated | I must have been corroborating you must have been corroborating she must have been corroborating we must have been corroborating you must have been corroborating they must have been corroborating |
Simple form | V-ing form |
I mustn't corroborate you mustn't corroborate she mustn't corroborate we mustn't corroborate you mustn't corroborate they mustn't corroborate | I mustn't be corroborating you mustn't be corroborating she mustn't be corroborating we mustn't be corroborating you mustn't be corroborating they mustn't be corroborating |
Perfect | V-ing perfect |
I mustn't have corroborated you mustn't have corroborated she mustn't have corroborated we mustn't have corroborated you mustn't have corroborated they mustn't have corroborated | I mustn't have been corroborating you mustn't have been corroborating she mustn't have been corroborating we mustn't have been corroborating you mustn't have been corroborating they mustn't have been corroborating |
Simple form | V-ing form |
must I corroborate? must you corroborate? must she corroborate? must we corroborate? must you corroborate? must they corroborate? | must I be corroborating? must you be corroborating? must she be corroborating? must we be corroborating? must you be corroborating? must they be corroborating? |
Perfect | V-ing perfect |
must I have corroborated? must you have corroborated? must she have corroborated? must we have corroborated? must you have corroborated? must they have corroborated? | must I have been corroborating? must you have been corroborating? must she have been corroborating? must we have been corroborating? must you have been corroborating? must they have been corroborating? |
Simple form | V-ing form |
mustn't I corroborate? mustn't you corroborate? mustn't she corroborate? mustn't we corroborate? mustn't you corroborate? mustn't they corroborate? | mustn't I be corroborating? mustn't you be corroborating? mustn't she be corroborating? mustn't we be corroborating? mustn't you be corroborating? mustn't they be corroborating? |
Perfect | V-ing perfect |
mustn't I have corroborated? mustn't you have corroborated? mustn't she have corroborated? mustn't we have corroborated? mustn't you have corroborated? mustn't they have corroborated? | mustn't I have been corroborating? mustn't you have been corroborating? mustn't she have been corroborating? mustn't we have been corroborating? mustn't you have been corroborating? mustn't they have been corroborating? |