1. Words ending in e, preceded by a consonant, usually drop e on taking a suffix beginning with a vowel.
| move | moving |
| believe | believing |
| conceive | conceiving |
| receive | receiving |
| achieve | achieving |
2. Words ending in ue drop e on taking a suffix.
| argue | arguing |
| fatigue | fatiguing |
| Exception: vague, vaguely, vagueness. | |
3. Words ending in e retain e on taking a suffix beginning with a consonant.
| move | movement |
| large | largely |
| hoarse | hoarseness |
| peace | peaceful |
| sense | senseless |
| whole | wholesome |
| remorse | remorseless |
| advertise | advertisement |
4. Words ending in ce or ge retain e on adding able, ably, or ous.
| change | changeable |
| courage | courageous |
| notice | noticeable |
| outrage | outrageous |
II. For doubling the final consonant.