The indicative mood expresses a fact or a factual condition. Copyright ©2001 The McGraw-Hill Companies. Any use is subject to the Terms of Use and Privacy Policy. McGraw-Hill Higher Education is one of the many fine businesses of While conceptually simple, islet transplantation hasbeen difficult to implement.Has islet transplantation beendifficult to implement?![]()
## Indicative Mood ##![]()
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