| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can only [be] [prep] | 31 |
|
| 2 | can [be] undertaken [prep] | 27 |
|
| 3 | only [be] undertaken [prep] | 15 |
|
| 4 | can only [be] undertaken | 10 |
|
