| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [adj] to certain | 5 |
|
| 2 | [modal v] be [adj] to certain | 5 |
|
| 3 | [adv] be [adj] to certain | 5 |
|
| 4 | be [adj] to certain [noun] | 12 |
|
| 5 | be [adj] to certain [noun pl] | 11 |
|
