| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] account for [det] [prep] | 16 |
|
| 2 | [modal v] account for [det] of | 16 |
|
| 3 | [modal v] account for [det] [prep] | 16 |
|
| 4 | may account for [det] [prep] | 9 |
|
| 5 | may account for [det] [prep] | 9 |
|
| 6 | [modal v] account for some [prep] | 6 |
|
