| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [adj] [conj] | 139 |
|
| 2 | could [adv] be [adj] [conj] | 106 |
|
| 3 | [modal v] [adv] be sure [conj] | 77 |
|
| 4 | could [adv] be sure [conj] | 24 |
|
| 5 | could [adv] [be] sure [conj] | 24 |
|
