| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] responsible for [verb] | 11 |
|
| 2 | it [is] responsible for [v-ing] | 11 |
|
| 3 | it is responsible for [verb] | 11 |
|
| 4 | it [is] responsible for [verb] | 11 |
|
