| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can be [verb] [prep] [adj] | 2010 |
|
| 2 | can be trace [prep] [adj] | 23 |
|
| 3 | [vb mod] be trace [prep] [adj] | 14 |
|
| 4 | [modal v] be trace [prep] [adj] | 14 |
|
| 5 | can [be] trace [prep] [adj] | 11 |
|
| 6 | can be trace [prep] [adj] | 11 |
|
| 7 | can be trace [prep] [adj] | 11 |
|
| 8 | can [be] trace [prep] [adj] | 11 |
|
