| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] by [art] [noun pl] | 8371 |
|
| 2 | [vb pp] by [art] [noun pl] | 7908 |
|
| 3 | required by [art] [noun] | 368 |
|
| 4 | required [prep] [art] [noun pl] | 125 |
|
| 5 | require by [art] [noun pl] | 64 |
|
