A.to follow | B.being followed by | C.following | D.following to |
A.doing, doing | B.doing, being done |
C.being done, to be done | D.to be done, being done |
A.waiting | B.waited | C.waits | D.to wait |
A.tying | B.tied | C.to tie | D.ties |
A.smiling | B.smiled | C.smile | D.to smile |
A.Catching | B.Caught | C.To catch | D.Catch |
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