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