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