| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [prep] [pos pn] | 4782 |
|
| 2 | [vb mod] [vb infin] [prep] [pos pn] | 4782 |
|
| 3 | could [vb infin] [prep] [pron] | 1748 |
|
| 4 | could [vb infin] [prep] [pos pn] | 608 |
|
| 5 | could [verb] [prep] [pos pn] | 608 |
|
| 6 | could [vb infin] [prep] [pos pn] | 608 |
|
