What is subject-verb agreement?
What kinds of verb do singular subjects take?
What kinds of verb do plural subjects take?
What verbs are to be used if the subjects are joined by ‘and’?
What verbs are to be used if the verbs are singular but are joined by ‘either..or’ or ‘neither..nor’?
Check out this new lesson - Grade 9 Grammar Lesson 21 Could and could have
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