This verb follows the standard English past tense rule: simply add -ed to the base form.
Testing is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she testinged to the store."
No. Use "did not testing" (not "did not testinged").
The verb testing follows the standard English past tense conjugation rule. When forming the past tense, testing becomes testinged. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why testing becomes testinged helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using testinged 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 testinged to the store." The past tense form does not change based on the subject — I testinged, you testinged, he/she testinged, we testinged, they testinged.