| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] could [vb infin] [adv] | 364 |
|
| 2 | could [vb infin] [indef pn] [adv] | 144 |
|
| 3 | [noun prp] could [vb infin] [indef pn] | 67 |
|
| 4 | [noun prp] [vb infin] [indef pn] [adv] | 5 |
|
