| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] [vb infin] [verb] for | 18 |
|
| 2 | [pron] [modal v] [vb infin] account for | 14 |
|
| 3 | [Wh det] [modal v] [vb infin] account for | 6 |
|
| 4 | which [modal v] [vb infin] account for | 5 |
|
| 5 | which [modal v] [verb] account for | 5 |
|
| 6 | which [modal v] [vb infin] account [prep] | 5 |
|
| 7 | which [modal v] [vb infin] account for | 5 |
|
| 8 | which [modal v] [vb infin] account [prep] | 5 |
|
