| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] undertaken by | 46 |
|
| 2 | [vb mod] only [be] undertaken | 22 |
|
| 3 | only [be] undertaken by | 7 |
|
| 4 | [vb mod] only [be] by | 6 |
|
