| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [vb pp] [adv] | 134 |
|
| 2 | could [adv] be [adv] [adj] | 101 |
|
| 3 | [adv] be [vb pp] [adv] [adj] | 57 |
|
| 4 | could [adv] be [vb pp] [adj] | 43 |
|
| 5 | could be [vb pp] [adv] [adj] | 39 |
|
