No | Pattern | Freq | Relations |
---|---|---|---|
1 | [vb pp] to have been caused by | 15 |
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2 | [vb past] to have been caused by | 7 |
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3 | think to have been caused by | 7 |
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4 | thought to have been caused by | 7 |
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5 | believe to have been caused by | 6 |
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