This verb follows the consonant-vowel-consonant (CVC) pattern. The final consonant is doubled before adding -ed to maintain the short vowel sound.
Smoothen is regular. It follows the Consonant Doubling rule.
Use past time markers: "Yesterday, she smoothenned to the store."
No. Use "did not smoothen" (not "did not smoothenned").
The verb smoothen follows the standard English past tense conjugation rule. When forming the past tense, smoothen becomes smoothenned. This follows the Consonant Doubling pattern, which is one of the most common conjugation rules in English.
Understanding why smoothen becomes smoothenned helps with spelling and pronunciation. This verb follows the consonant-vowel-consonant (CVC) pattern. The final consonant is doubled before adding -ed to maintain the short vowel sound.
When using smoothenned in writing, remember that it functions as a past tense verb and typically appears with time markers like yesterday, last week, or ago. For example: "Yesterday, she smoothenned to the store." The past tense form does not change based on the subject — I smoothenned, you smoothenned, he/she smoothenned, we smoothenned, they smoothenned.