| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] could [adv] [vb infin] up to | 6 |
|
| 2 | [pron] could [adv] [vb infin] up to | 6 |
|
| 3 | could [adv] [vb infin] up to [adj] | 7 |
|
| 4 | could [adv] [vb infin] up to [num] | 6 |
|
