The most common past times are: yesterday, last week/month/year, just now, this morning and so on. Just now, so we should use the simple past tense.
Tenses are verb forms, and different tenses are used to express different times and ways. It is a verb form that expresses behavior, action and state under various time conditions. English has 16 tenses.
In grammar, tenses or tenses indicate the relationship between the time when an action occurs and the time when it is spoken. Generally, it can be divided into past tense, present tense and future tense, and it is usually used together with the progressive tense and the perfect tense indicating the progress or termination of the action.