| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [modal v] account for [det] | 17 |
|
| 2 | [noun sg] [vb mod] account for [det] | 17 |
|
| 3 | [noun sg] [modal v] account for some | 6 |
|
| 4 | [noun sg] may account for [det] | 5 |
|
| 5 | [noun sg] may account for [det] | 5 |
|
