| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] account for the | 120 |
|
| 2 | could [verb] for the | 120 |
|
| 3 | could [vb infin] for the | 120 |
|
| 4 | could account for [art] | 31 |
|
| 5 | could account for [art] | 31 |
|
| 6 | could account for the | 27 |
|
| 7 | could account for the | 27 |
|
| 8 | could account [prep] the | 27 |
|
| 9 | could account for the | 27 |
|
| 10 | could account [prep] the | 27 |
|
