31. A gerund is a verb form that appears in positions that are usually reserved for nouns. 32. Then what is the gerund form? 33. Gerunds typically appear as subject or object noun phrases or even as the object of a preposition:34. :Status is not a verb, so it cannot be formed into a gerund like statusing. 35. People who are PDAing _ can we make a gerund out of it ? _ should be sensitive. 36. _Limits on the German penchant for stringing together nouns and verbs in lengthy compound verbs and gerunds . 37. One common use of the gerund is with the preposition " ad " to indicate purpose. 38. These are not gerund forms; the-um form of the gerund is used only after prepositions. 39. These are not gerund forms; the-um form of the gerund is used only after prepositions. 40. Gerunds typically appear as subject or object noun phrases, or even as the object of a preposition: