This verb follows the consonant-vowel-consonant (CVC) pattern. The final consonant is doubled before adding -ed to maintain the short vowel sound.
Parallelogram is regular. It follows the Consonant Doubling rule.
Use past time markers: "Yesterday, she parallelogrammed to the store."
No. Use "did not parallelogram" (not "did not parallelogrammed").
The verb parallelogram follows the standard English past tense conjugation rule. When forming the past tense, parallelogram becomes parallelogrammed. This follows the Consonant Doubling pattern, which is one of the most common conjugation rules in English.
Understanding why parallelogram becomes parallelogrammed 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 parallelogrammed 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 parallelogrammed to the store." The past tense form does not change based on the subject — I parallelogrammed, you parallelogrammed, he/she parallelogrammed, we parallelogrammed, they parallelogrammed.