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They, knew

It, knew

had been strolling

strolled

were strolling

used to stroll

Where did

When did

Who did

Why had

when

why

whose

which

Were you watching

Did you see

Have you seen

Had you seen

there was

it was

it were

there were

It were

It was

There was

There were

It, were reading

There, read

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There, readed

would be, used to get

would be, would get

were used to be, used to getting

used to be, would get

arrived, had already gone

arrived, went already

had arrived, had already gone

had arrived, already went