| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be responsible [prep] [v-ing] | 876 |
|
| 2 | [be] responsible [prep] [v-ing] | 876 |
|
| 3 | been [adj] [prep] [v-ing] | 720 |
|
| 4 | been responsible [prep] [v-ing] | 73 |
|
| 5 | [been] responsible [prep] [v-ing] | 73 |
|
| 6 | been responsible [prep] [verb] | 73 |
|
