| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can be traced [adv] to [adj] | 16 |
|
| 2 | can [be] traced [adv prt] to [adj] | 15 |
|
| 3 | can [be] traced back to [adj] | 15 |
|
| 4 | can [be] traced back to [adj] | 15 |
|
| 5 | can [be] traced [adv] to [num] | 8 |
|
