A.to go | B.going | C.to have gone | D.having gone |
A.To ensure | B.Ensuring | C.Having ensured. | D.To have ensured |
A.display | B.to display | C.displaying | D.displayed |
A.to have studied | B.to be studying | C.to study | D.to have been studying |
A.being jumped | B.jumped | C.pulling | D.being pulled |
A.there being | B.it to be | C.it being | D.there to be |
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