Past perfect (No change)
Present perfect to past perfect
Past continuous to past perfect continuous
Present perfect continuous to past perfect continuous
Present continuous to past continuous
Present perfect to past perfect
Present simple to Past simple
Past simple to past perfect
Present simple to Past simple
Past simple to past perfect
Present continuous to past continuous
Past perfect continuous (no change)
Present perfect continuous to past perfect continuous
Past perfect continuous (no change)
Past perfect (No change)
Past continuous to past perfect continuous
He said that he had worked hard
He said that he had worked hard
I have worked hard
He said that he was working hard
I have been working hard
I was working hard
I worked hard
He said that he had been working hard
He said that he worked hard
I am working hard
I work hard
He said that he had been working hard.