[ Grammar ]
You use these expressions: WHILE / WHEN with:
A. Past Simple and Past Continuous
B. Past Simple and Past Perfect
C. Past Perfect and Present Perfect

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Gerund & ParticipleSynonymsModals for ObligationSubjective and Objective PronounPronouns and Subject Verb AgreementNouns as AdjectivesGoing To Be and WillSimple Present and Present ContinuousAdjective vs AdverbPassive Voice - Present TensesOther quiz:
Grammar › ViewI ________ (never/ be) to Canada.
A. have never been
B. never has been
C. was never
D. never was
Verb & Grammar › View
Which word is an adjective in this sentence: “The blue car is fast”?
A. blue
B. car