Grammar Quiz

[ Past Perfect Simple & Past Perfect Continuous ]

I realized that I (forget) to thank them.

Which is the correct past perfect simple for the sentence above?

A. had forget

B. has forgotten

C. having to forget

D. had forgotten

Select your answer:
         


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Infinitive GerundModals for RecommendationsThe First Conditional SentencePunctuationTenses and StructuresGrammar: is/are/was/werePrepositions after VerbsPossessive NounsVerb Tenses and ModalsAdjectives & Adverbs

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