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