Grammar is the foundation of language learning. Grammar is a rule that plays an organizational role. Knowing grammar can solve the problem of insufficient sense of language or vocabulary in reading.

For example: period? This? Period,? That? Area? Yes? Research? Activities? Most? Close? Is there a connection? With what? That? Yes? Autonomous? Agent? Used to be. AI？ Planning.

During this period, the field of research activities most closely related to autonomous agents is artificial intelligence planning.

After the sentence period? This? Period (adverbial of time); That? Area? Yes? Research? Activities (themes); Most? Close? Is there a connection? With what? That? Yes? Autonomous? Agent (postattribute); Used to be. (predicate).

2. Grammar is the basis of language use. Grammar has a historical and civilized background, but in daily use, especially in oral English, the grammar of our language is not rigorous. In some important written or formal oral communication occasions, the authority of grammar provides the guidelines for use.

Extended data

Noun-related grammar—

Nouns are generally divided into proper nouns and common nouns. Proper nouns are the proper names of individual people, things, places, groups and institutions. , the first letter is usually capitalized.

Nouns can also be divided into countable nouns and uncountable nouns according to the nature of the things they represent. Countable nouns have singular and plural forms.