What does the V3 past participle actually do in the present perfect?
2 answers:
- The Past participle and present perfect are used when we change voices
- Here contaminated means used.
Explanation:
- Present perfect(v³) is formed by the help of past participle. The structure of present perfect tense is subject+have/has+v³+object.
- Yes, it is an adjective. It is describing more about the noun i.e air.
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