| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] account for [art] | 149 |
|
| 2 | [conj] account for [art] | 63 |
|
| 3 | [conj] [modal v] account for | 31 |
|
| 4 | [conj] [modal v] for [art] | 5 |
|
