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to do do doing to be doing
to, he with, him to, his with, his
did is to be doing were doing be doing
turn on turn down turn off turn up
was doing did had done would do
if had he finished his homework. whether he had finished his homework if he had finished your homework. if you had finished your homework.
do his homework does his homework doing his homework did his homework
done to do doing being done
costs; spends spends; take takes; costs spends; takes
our homework our homeworks her homework his homework
Tom Kate Tom and Kate Tom's sister
costs; spends spends; take takes; costs spends; takes
does doing does doing does to do
Mike and Tom were found seated quietly, doing their homework Mike and Tom were found seating quietly, doing their homework he found Mike and Tom seating quietly, doing their homework he found Mike and Tom seated quietly, doing their homework
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