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