No | Pattern | Freq | Relations |
---|---|---|---|
1 | have occurred [prep] a [adj] | 30 |
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2 | has occurred [prep] a [adj] | 21 |
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3 | have occurred in a [adj] | 21 |
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4 | have occurred [prep] a previous | 18 |
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5 | have occurred [prep] a previous | 18 |
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