| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adv] [prep] | 1910 |
|
| 2 | could [vb infin] [adv prt] [prep] | 1217 |
|
| 3 | [modal v] [vb infin] around [prep] | 83 |
|
| 4 | could [verb] around [prep] | 12 |
|
| 5 | could [vb infin] around [prep] | 12 |
|
