Spelling and pronunciation rules for the three endings that trip learners up most: regular past tense -ed, the present participle -ing, and the plural/3rd-person -s. Know when to double, when to drop, and how each one sounds.
Part 1-ed Spelling Rules
Decision Flow — How to add -ed
Does the verb end in -e?like, hope, danceJust add -d
↓ NO
Does it end in consonant + y?study, carry, tryChange y → ied
↓ NO
Is it CVC (1 syllable) or stressed final syllable?stop, plan, preferDouble + ed
↓ NO
Everything elseplay, open, visitJust add -ed
BASE Just add -ed
✔ Most verbs: simply append -ed
The default rule. If no special ending applies, just add -ed to the base form.
Same as "dye/die" — ambiguity forces keeping the -e.
🇬🇧 age → ageing or aging (REGIONAL)
Both "ageing" (British) and "aging" (American) are correct. British English prefers keeping the -e to preserve the soft 'g' sound /dʒ/ visually, even though pronunciation doesn't change.
age → ageing 🇬🇧age → aging 🇺🇸
Unlike "dye", there's no confusion risk — "aging" doesn't mean something else. It's a spelling preference, not a rule.
These verbs end in a pronounced vowel -e (not a silent -e). The -e is part of the word's sound, so it stays. Dropping it would create an odd letter combination.
The -e in "canoe" is pronounced /uː/, not silent. Same logic as -ee words (see → seeing). "Queueing" vs "queuing" — both accepted, British prefers the -e.
2️⃣ Verbs ending in -ie → change to -y
When a verb ends in -ie, change it to -y before adding -ing. You can't have "-ieing" — it's an orthographic rule.
die → dyingtie → tyinglie → lying
3️⃣ Verbs ending in -c → add -k
When a verb ends in -c, add a -k before -ing to preserve the hard /k/ sound.
picnic → picnickingpanic → panicking
Without the -k, the 'c' before -ing would sound like /s/ (as in "icing") instead of /k/.
4️⃣ Verbs ending in -w or -x → don't double
Even though they look like CVC patterns, -w and -x are phonetic exceptions — they never get doubled.
The -x represents two sounds /ks/, so phonetically the consonant is already "doubled". The -w after a vowel forms a diphthong, not a true consonant ending.
5️⃣ Verbs ending in -ee → just add -ing (don't drop e)
When a verb ends in double -ee, the final -e is NOT silent — it's a real vowel sound. Keep both and just add -ing.
The "drop silent -e" rule doesn't apply here because the -e in -ee is part of the vowel sound /iː/, not a silent letter.
6️⃣ -ge ending: when to keep vs drop -e
Most -ge verbs drop the -e normally. Only keep it when dropping would create ambiguity with another word (see singe → singeing above in sub-exceptions).
The rule is simple: if dropping -e creates a word that already exists (sing/singing), keep it. Otherwise, drop it like normal.
7️⃣ British English: double -l even without stress
In British English, verbs ending in a vowel + l double the -l before -ing, even when the stress is NOT on the last syllable. American English does NOT double in these cases.
Both spellings are correct — it depends on the dialect. If stress IS on the last syllable, both dialects double: compel → compelling, control → controlling.
8️⃣ Truly irregular forms
A few common verbs don't follow any predictable pattern — they just need to be memorized.
be → beingski → skiingtaxi → taxiing
"be → being" keeps the -e (it's not silent, it IS the word). "ski → skiing" and "taxi → taxiing" just add -ing to the vowel ending directly.
📋 -ing Quick Reference
Ending
What to do
Example
Most verbs
Just add -ing
work → working
Ends in -y
Just add -ing (keep y)
study → studying
Two consonants at end
Just add -ing
help → helping
Two vowels + consonant
Just add -ing
wait → waiting
CVC (stressed)
Double last + -ing
run → running
CVC (unstressed)
Don't double, just -ing
open → opening
Silent -e
Drop -e, add -ing
make → making
-ee (not silent)
Keep -ee, add -ing
see → seeing
-e needed (meaning)
Keep -e, add -ing
dye → dyeing
-ge (ambiguous)
Keep -e, add -ing
singe → singeing
-ie
Change to -y + -ing
die → dying
-c
Add -k + -ing
panic → panicking
-w / -x
Just add -ing (no double)
snow → snowing
-l (British 🇬🇧)
Double -l + -ing
travel → travelling
-l (American 🇺🇸)
Just add -ing
travel → traveling
Part 3Plural & 3rd-Person -s Pronunciation
The -s ending isn't always pronounced the same way — it depends on the sound right before it.