Word segmentation is a form of verb, which has both the characteristics of adjectives and some characteristics of verbs (such as expressing a certain tense and voice (subject-passive dynamic)). There are two kinds of participles in English: past participles (also called complete participles) and present participles. The past tense is the tense of verbs, which is used to express the time concept of actions. In other words, the past tense is a definite verb (the infinitive verb is the prototype of the verb, and the definite verb is a verb with a specific tense and voice-note: only transitive verbs have a passive voice, but intransitive verbs do not. Let me take transitive verbs as an example, except passive voice, which is also applicable to transitive verbs. Pay attention to the meaning of the above two paragraphs: participle is a form of verb, that is, "nominal", but the written form of verb cannot be used as predicate verb. Maybe you will retort that they had already swam to the other side of the river when I arrived. Isn't swum a predicate verb in this sentence? That's not true. To be exact, had swum is the predicate verb of this sentence. (Note: I said this for your understanding. If you want to express it, the school statement shall prevail. Why do you make such a distinction? Remember: in the above example, had is an inseparable part of the verb, because had and swum are used together in the past perfect tense, and swum is used alone in the past perfect tense. They are two completely different definite verbs of a verb. So you see: the past tense refers to one of the forms after the verb "tense" and "voice", and the past participle and the present participle may appear as part of this formatted verb. If you are interested, you can draw a table yourself, fill in various tenses in the vertical column and active and passive in the horizontal column, and then use a simple verb as an example to list all the definite verb forms of a verb. Remember to do as I said above, and you can't ignore the word was\is\have\had! I made a list of given verbs, which is a word document. You can find it in the file I uploaded. ) Of course, word segmentation has more than just this function. As mentioned earlier, word segmentation has some characteristics of both adjectives and verbs, because when word segmentation is used as a verb to form various definite verbs, its verb function is weakened (for example, it needs to add have to indicate the present perfect tense), and it gradually has the decorative characteristics of adjectives, which leads to some word segmentation that can be used as adjectives completely, such as broken in His Glasses. , while others can't. We can't say that he is swimming across the river. But in any case, you must ensure that the form of participle conforms to the grammatical norms (for example, you can't say "his glasses are broken", because in this action, the glasses are passive, so your eyes can't break themselves). On the basis of ensuring the correct form, let's discuss whether a participle can be used as an adjective directly, or which side of a verb or adjective is biased. This requires you to carefully observe and accumulate in the usual learning process. If there is any way: whenever you encounter a verb, you immediately ask yourself what the tense and voice of this verb is, and what is it like when its definite verb form is extracted separately? Then, the rest of the sentence components are clear at a glance according to the relationship with the predicate verb.