| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] account for [art] | 149 |
|
| 2 | it account for [art] | 15 |
|
| 3 | it [modal v] account for | 10 |
|
| 4 | it [modal v] for [art] | 7 |
|
