Tense in Grammar

The past perfect tense 'had put' is required here because the action of putting poison occurred before the state of being sure about it. 'Putted' is not a standard English verb form.

The auxiliary verb 'did' takes the past tense, so the main verb must be in the base form 'eat'. Therefore, 'didn't eat' is the correct construction.

The simple past 'were' is used to describe a state of being at a specific time in the past. 'Had been' would imply a duration leading up to that specific moment, which is less fitting for a single event.

The past perfect 'had been' is used here to describe a state that existed over a period of time leading up to the start of high school. It establishes a background condition before the main narrative shift.

The simple past 'felt' is used for a completed action or state in the past. 'Had felt' would imply the feeling occurred before another past action, which is not the case here.

The simple past 'waved' is used for a specific, completed action in the past. 'Had waved' would imply it happened before another past event, which is not indicated here.

The simple past of 'see' is 'saw'. 'Seen' is a past participle and requires an auxiliary verb, and 'had saw' is grammatically incorrect.

The past perfect 'had run' is used because the action of running was completed before the rain started. 'Had ran' is incorrect because the past participle of 'run' is 'run'.

The past perfect 'had hoped' is used to express a desire that existed before the disappointment of finding the store closed. It highlights the sequence of events.

The simple past of 'drink' is 'drank'. 'Drunk' is the past participle and requires an auxiliary verb.

The past perfect 'had walked' is used because the action of walking was completed before the rain started. This establishes the timeline of the events.

The teacher 'chose' (simple past) a student, and the narrator was mad because she 'had chosen' (past perfect) Sam previously. This correctly sequences the two past events.

The past perfect 'had lived' is used to describe a state that occurred before the ability to speak Spanish was established. It provides the background for the main clause.

The simple past 'drove' is used for a specific completed action. 'Driven' is a participle and requires an auxiliary verb.

The past perfect 'had driven' is used because the action of driving was completed before the realization occurred. This correctly shows the order of events.

The verb 'hit' is irregular; its past tense is also 'hit'. 'Hitted' is not a valid word in English.

The past perfect 'had eaten' is used because the action of eating occurred before the mom arrived home. This correctly sequences the past events.

The simple past 'ate' is used for a completed action at a specific time in the past ('yesterday').