| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] account for [art] | 273 |
|
| 2 | [noun] [modal v] account for | 153 |
|
| 3 | [modal v] account for [art] | 149 |
|
| 4 | [noun] [modal v] for [art] | 31 |
|
