| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] account for | 38 |
|
| 2 | which [vb mod] account for | 38 |
|
| 3 | which could [verb] for | 16 |
|
| 4 | [pron] could account for | 15 |
|
| 5 | which could account [prep] | 7 |
|
| 6 | [Wh det] could account for | 7 |
|
| 7 | which could account for | 7 |
|
| 8 | which could account for | 7 |
|
| 9 | which could account [prep] | 7 |
|
| 10 | which could account for | 7 |
|
