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Why is it each and every tenses were added with Past Participle in the end?
Simple Present:am/is/are + past participle
Present continuous:am/is/are being + past participle
Simple past:was/were + past participle
Past continuous:was/were being + past participle
Present perfect:has/have been + past participle
Past perfect: had been + past participle
Future:will be + past participle
Future perfect:will have been +past participle
Future continuous: going to be + past participle
Past Participle 
Linear Mode
