| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [modal v] [verb] for [art] | 38 |
|
| 2 | [adj] [modal v] account for [art] | 23 |
|
| 3 | this [modal v] account for [art] | 16 |
|
| 4 | this [modal v] account [prep] [art] | 16 |
|
