| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [prep] [v-ing] | 174 |
|
| 2 | [pron] is responsible [prep] [v-ing] | 82 |
|
| 3 | it [be] responsible [prep] [v-ing] | 15 |
|
| 4 | it be responsible [prep] [v-ing] | 15 |
|
| 5 | it [is] responsible [prep] [v-ing] | 11 |
|
| 6 | it is responsible [prep] [verb] | 11 |
|
