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