| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | account for [det] [noun] | 128 |
|
| 2 | [modal v] account for [det] | 58 |
|
| 3 | [modal v] account for [noun] | 28 |
|
| 4 | [modal v] for [det] [noun] | 20 |
|
