Verbs ending in -e simply add -d to form the past tense. This is the most straightforward regular rule.
Catalyze is regular. It follows the -d Addition rule.
Use past time markers: "Yesterday, she catalyzed to the store."
No. Use "did not catalyze" (not "did not catalyzed").
The verb catalyze follows the standard English past tense conjugation rule. When forming the past tense, catalyze becomes catalyzed. This follows the -d Addition pattern, which is one of the most common conjugation rules in English.
Understanding why catalyze becomes catalyzed helps with spelling and pronunciation. Verbs ending in -e simply add -d to form the past tense. This is the most straightforward regular rule.
When using catalyzed 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 catalyzed to the store." The past tense form does not change based on the subject — I catalyzed, you catalyzed, he/she catalyzed, we catalyzed, they catalyzed.