| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] account for [art] | 23 |
|
| 2 | which [vb mod] account for [art] | 23 |
|
| 3 | which [modal v] account for [art] | 23 |
|
| 4 | which [modal v] account for [art] | 23 |
|
| 5 | which [modal v] account for the | 20 |
|
| 6 | which may account for [art] | 6 |
|
| 7 | which may account for [art] | 6 |
|
| 8 | which could account for [art] | 5 |
|
| 9 | which could account for [art] | 5 |
|
