Second Grade English: Suffix Spelling Rules: Dropping 'e', Doubling Final Consonants

When you take a base word and attach a suffix like -ed, -ing, -er, or -est, you cannot always glue the parts together without making adjustments. In English spelling, base words often change their endings to welcome a new suffix. The two most critical suffix spelling rules in second grade are the Drop the Silent 'E' Rule and the Doubling Final Consonants Rule (also called the 1-1-1 Rule). Mastering these two rules prevents confusion and guarantees that your verbs and adjectives are spelled with precision. In this chapter, you will master both rules, learn the trigger conditions, and practice suffix transformations.

Rule 1: Dropping the Silent 'E'

When a base word ends in a silent 'e', and you want to attach a suffix that begins with a vowel (such as -ing, -ed, -er, -est, or -able), you must drop the silent 'e' before adding the suffix!

+-----------------------------------------------------------------+
|                    THE DROP THE SILENT 'E' RULE                 |
+-----------------------------------------------------------------+
|                                                                 |
|   Base Word:  [ B A K E ]  (Ends in silent 'e')                 |
|                     |                                           |
|                     V                                           |
|               Drop the 'e'!                                     |
|                     |                                           |
|                     V                                           |
|               [ B A K ]    +    [ -ING ]   =   BAKING           |
|                                                                 |
|   (Never write "bakeing"! Two vowels would collide!)            |
|                                                                 |
+-----------------------------------------------------------------+

Silent E Transformations

Look at these regular transformations: hope + -ing = hoping (drop e) ride + -ing = riding (drop e) cute + -est = cutest (drop e) brave + -er = braver (drop e)

What if the Suffix Begins with a Consonant?

If the suffix begins with a consonant (such as -ful, -less, or -ly), KEEP the silent 'e'! hope + -ful = hopeful (keep e!) care + -less = careless (keep e!) safe + -ly = safely (keep e!)

Rule 2: Doubling the Final Consonant (The 1-1-1 Rule)

When you attach a vowel suffix (-ed, -ing, -er, -est) to a short vowel word, you often must double the final consonant. To know whether to double, use the 1-1-1 Test!

+-----------------------------------------------------------------+
|                       THE 1-1-1 DOUBLING TEST                   |
+-----------------------------------------------------------------+
|                                                                 |
|   Check the base word for THREE ones:                           |
|   1. Is it ONE syllable?                                        |
|   2. Does it have ONE short vowel?                              |
|   3. Does it end in ONE consonant?                              |
|                                                                 |
|   If ALL THREE ARE YES --> DOUBLE THE CONSONANT!                |
|   [ h - o - p ]  +  -ing  =  HOPPING  (Double the 'p'!)         |
|                                                                 |
+-----------------------------------------------------------------+

Why Doubling Protects the Short Vowel

Look at the profound difference between hoping and hopping: hope (long o) -> drop e -> hoping (one p, vowel stays long!) hop (short o) -> double p -> hopping (two p's protect the short o!) If you forgot to double the p in hop, you would accidentally write hoping, changing your meaning from leaping on one foot to wishing for something!

More 1-1-1 Doubling Examples

+-----------------------------------------------------------------+
|                 1-1-1 DOUBLING TRANSFORMATIONS                  |
+-----------------------------------------------------------------+
|  Base Word | 1-1-1 Check? | Suffix Added | Resulting Word       |
+------------+--------------+--------------+----------------------+
|  run       | Yes! (1-1-1) | -ing         | running (double n)   |
|  stop      | Yes! (1-1-1) | -ed          | stopped (double p)   |
|  big       | Yes! (1-1-1) | -est         | biggest (double g)   |
|  swim      | Yes! (1-1-1) | -er          | swimmer (double m)   |
|  jump      | NO! (2 cons) | -ed          | jumped (no double)   |
|  read      | NO! (2 vowels| -ing         | reading (no double)  |
+-----------------------------------------------------------------+

Practice Exercises

Exercise 1: Apply the correct spelling rule to combine each base word with the given suffix: make + -ing; skip + -ed; slide + -ing; hot + -est; care + -ful.

Exercise 2: Explain why "jump" does not double the 'p' when adding -ed (jumped), while "clap" doubles the 'p' (clapped).

Exercise Solutions

Solution to Exercise 1: The combined words are: making (drop silent e); skipped (1-1-1 rule, double p); sliding (drop silent e); hottest (1-1-1 rule, double t); careful (suffix begins with consonant, keep silent e).

Solution to Exercise 2: "Clap" has 1 syllable, 1 short vowel, and ends in 1 consonant (1-1-1 rule), so the p is doubled to make clapped. "Jump" does not pass the 1-1-1 test because it ends in two consonants (m and p), so the p is not doubled.