Level 9-4

-ed verbs: regular and doubling consonants

mixed, covered, enjoyed, compared, planned, tapped, dropped, tagged, stopped, tipped

In this level, we take ten verbs and put them in the past tense by adding an -ed ending to them.

Two exceptions, though: First, if the verb already ends with an e (such as compare), we just add the letter d to put the verb in the past tense.

Second, if the verb ends with a short vowel and then a single consonant other than x (such as stop), the final consonant is generally doubled before the -ed ending is added. So stop becomes stopped instead of stoped.