| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] [verb] for | 160 |
|
| 2 | which [modal v] [vb infin] for | 158 |
|
| 3 | [pron] [modal v] account for | 78 |
|
| 4 | [Wh det] [modal v] account for | 39 |
|
| 5 | which [modal v] account for | 38 |
|
| 6 | which [modal v] account for | 37 |
|
| 7 | which [modal v] account [prep] | 37 |
|
| 8 | which [modal v] account [prep] | 37 |
|
| 9 | which [modal v] account for | 37 |
|
