| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [modal v] be trace to [adj] | 6 |
|
| 2 | [modal v] be trace [adv] to [adj] | 6 |
|
| 3 | [modal v] be trace to [art] [adj] | 16 |
|
| 4 | [modal v] be trace to [art] [adj] | 16 |
|
| 5 | [modal v] be trace to the [adj] | 12 |
|
| 6 | [modal v] be trace to the [adj] | 12 |
|
| 7 | [modal v] be trace to [adj] [adj] | 5 |
|
