Form participles from the following words that are accented on the last syllable:
| prefer | intervene | escape | expel |
| refer | reveal | acquire | contain |
| occur | repeal | secure | forbid |
| permit | pursue | conceal | incur |
| interfere | erase | arrange | forget |
| retain | control | acquit | repel |
Form participles from the following words not accented on the last syllable:
| benefit | travel | marvel | shelter |
| revel | answer | exhibit | render |
| quarrel | profit | shovel | limit |
Words in which the accent changes do not double the final consonant before adding a suffix beginning with a vowel; as,
| confer | conference | infer | inference |
| refer | reference | prefer | preferable |
Explain why the final consonant is not doubled in each of the following words:
| neglect | neglecting | lean | leaning |
| prefer | preference | select | selecting |
| creep | creeping | receipt | receipting |
| wonder | wondering | answer | answering |
Exercise 38
Rule 6.—In forming the present participle of verbs ending in y, retain the y before adding ing; as,