| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | required [to-vb] [adv] [prep] [noun sg] | 8 |
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| 2 | required [to-vb] [adv] [prep] [noun sg] | 6 |
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required [to-vb] [adv] [prep] [noun sg] Next page
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