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|I/you/we/they||um and ah|
|he/she/it||ums and ahs|
|present participle||umming and ahing|
|past tense||ummed and ahed|
|past participle||ummed and ahed|
This is the British English definition of um and ah. View American English definition of um and ah.
be reversed; be as if it had never happenedadd a word