| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [modal v] to account for | 5 |
|
| 2 | [modal v] [vb infin] to account for | 18 |
|
| 3 | [modal v] [verb] to account for | 18 |
|
| 4 | [modal v] have to account for | 8 |
|
| 5 | [modal v] have to account for | 8 |
|
