Which one is the form of present simple tense?
B. Subject+Verb to be+ Verb ing
D. All correct
Past ParticipleCleanup vs. Clean UpPossessive Adjective Present Perfect TensePhrasal VerbVocab CheckingComparative AdjectiveAuxiliary Verbs (be, do, have)Frequency
Other quiz: Grammar - Punctuation of Sentences
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