Present perfect versus past simple |
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Present perfect continuous |
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Modal verbs of ability (can, could & be able to) |
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Modal verbs of possibility and probability |
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Modal verbs of Deduction |
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Subject Questions |
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Zero conditional |
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First conditional |
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Second conditional |
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Third conditional |
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Future: going to or will |
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Future continuous |
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Passive |
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Have something done (the causative) |
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Semi-modal verbs used to and be/get used to |
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Reported speech |
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Reported questions |
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Defining Relative clauses |
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Non-defining Relative clauses |
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Verb + infinitive or gerund |
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