In English, the complete form of "I am" is "I am". "I am" and "I am" are different in parts of speech, tense and usage, as follows:

1, different parts of speech:

(1) I'm: I'm the abbreviation of I'm, which is a pronoun structure.

(2) I am: I am is the complete writing of I m, which is a subject-predicate structure, I is the subject and am is the copula.

2. Different tenses:

(1) I am: I use the simple present tense.

I am: I am used in the present continuous tense.

3. Different usages

(1) I'm: I'm can only be placed at the beginning of a sentence, followed by a predicate (that is, a copula or a verb or an auxiliary verb), but not at the end of a sentence.

(2) I am: I am can be placed at the beginning of a sentence, followed by nouns, adjectives, verbs, prepositions and adverbs in the form of ing or ed. You can also put it at the end of a sentence without words.

Introduction to English abbreviations:

The complete form of English means that an English abbreviation can be abbreviated in any way, and it will be drawn together through some letter parts, but abbreviations will also cause trouble, because abbreviations may represent different meanings in different industries.

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