| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [be] [verb] [adv] | 5212 |
|
| 2 | can [be] [vb pp] [adv] | 5188 |
|
| 3 | [modal v] [be] traced [adv] | 141 |
|
| 4 | can [be] trace [adv] | 125 |
|
| 5 | can [be] traced [adv] | 125 |
|
