Lecture 2.1 Base Words and Endings(-ed,-ing)

A base word is a word without any endings added to it.

• If a base word has a short vowel sound and ends in a consonant, double the consonant before adding ed or ing.

• If a base word ends with e, drop the e before adding ed or ing.

• If a base word ends with y, change the y to i before adding ed. Do not change the y before adding ing.