| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] [adv] [to-vb] | 49 |
|
| 2 | [vb -s] been used [adv] [to-vb] | 13 |
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[vb -s] been [vb pp] [adv] [to-vb] Next page
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