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14 questions
see-saw-.......
see
sow
sew
seen
go-went -...
got
gone
go
gotten
Helen … (to wash) the dishes for fifteen minutes.
have been washing
has been washing
is washing
has be washing
Sam … (to drive) a car for five hours now.
has bee driving
have been driven
has been driving
is driving
I … (to look) for information on the subject since last Friday.
am looking
has been looking
have looked
have been looking
You … (to work) as a computer programmer for more than fifteen years.
has been working
have are working
have been worked
have been working
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