Level A2
Double Consonant Rule
He stopped the car at the lights.
Look: He stopped the car at the lights. The short word took a tail, so the last consonant is doubled.
Forms
stop + ed = stopped— short word: the last consonant is doubledrun + ing = running— the same with the other tailopen + ed = opened— longer word with stress at the start: no doubling
A common mistake
Wrong: He stoped the car.
Right: He stopped the car.
A common mistake is to keep a single consonant. We write: He stopped the car.
More examples
They are swimming in the lake.
Short word, doubled consonant: They are swimming in the lake.
We visited our grandmother.
Longer word with stress at the start: We visited our grandmother.