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