No | Pattern | Freq | Relations |
---|---|---|---|
1 | [not/n't] know at the time [conj] | 6 |
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2 | [not/n't] know at the time [that] | 5 |
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3 | [not/n't] know at the time that | 5 |
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4 | [not/n't] know at the time that | 5 |
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