... watched the childreninteract.intra- within intravenous within or into a vein She could not eat and had to (adj) be fed intravenously for threedays.intro- into, within introvert (n) a person ... sits sitting sat satset, sets setting set setrise, rises rising rose risenraise, raises raising raised raisedGerunds and InfinitivesGerunds looklike verbs because they end in -ing, but ... performs, so it is functioning as a verb, not as a gerund:Tracy is camping in the Pine Barrens next week.Words ending in -ing can also function as adjectives:Some of our campinggear needs to be...