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