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