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