| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [been] [adj] for | 273 |
|
| 2 | [modal v] [verb] [been] responsible for | 39 |
|
| 3 | [modal v] have [been] responsible [prep] | 39 |
|
| 4 | [modal v] have [be] responsible for | 39 |
|
