Jawaban:

1. The simple past, past simple, or past indefinite, sometimes called the preterite, is the basic form of the past tense in Modern English. It is used principally to describe events in the past

2. The principal function of adverbs is to act as modifiers of verbs or verb phrases.

3. The progressive or continuous aspect is used to denote a temporary action or state that began at a previous time and continues into the present time (or other time of reference). It is expressed using a form of the auxiliary verb to be (conjugated appropriately for tense etc.) together with the present participle (-ing form) of the main verb: I am reading; Were you shouting?; He will be sitting over there. Certain stative verbs make limited use of progressive aspects. Their non-progressive forms (simple or non-progressive perfect constructions) are used in many situations even when expressing a temporary state.