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