| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] how [indef pn] could | 29 |
|
| 2 | understand how [pron] could | 18 |
|
| 3 | [vb infin] how [indef pn] could | 13 |
|
| 4 | understand how [indef pn] [vb mod] | 9 |
|
| 5 | understand how [indef pn] [modal v] | 9 |
|
| 6 | understand how [indef pn] could | 7 |
|
| 7 | understand how [indef pn] could | 6 |
|
| 8 | understand [adv] [indef pn] could | 6 |
|
| 9 | understand [Wh adv] [indef pn] could | 6 |
|
| 10 | understand how [indef pn] could | 6 |
|
