21. Naffing was an RAF euphemism for an adjective-verb-gerund originally denoting copulation. 22. B . Things which collectively are known as gerunds , but individually as a gerund. 23. B . Things which collectively are known as gerunds, but individually as a gerund . 24. Finnish phrases using the second infinitive can often be rendered in English using the gerund . 25. There is another kind of gerund that ( sometimes ) implies disapproval of the action. 26. How are gerunds distinguished from compound predicates? 27. Noun : Wikification; gerund : wikifying. 28. It says to use the gerund of a verb but whistleblower is also a noun. 29. This should never be used as a gerund , as it often is in English. 30. The fact that the b-sentences are also acceptable illustrates the enigmatic behavior of gerunds .