| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [be] [verb] | 39877 |
|
| 2 | can [be] [vb pp] | 39674 |
|
| 3 | [modal v] [be] illustrated | 191 |
|
| 4 | [vb mod] [be] illustrated | 191 |
|
| 5 | can [be] illustrated | 126 |
|
| 6 | can [be] illustrate | 126 |
|
