| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] [adv] [adj] | 1610 |
|
| 2 | could be [vb pp] [prep] [adj] | 647 |
|
| 3 | could be [vb pp] [prep] [adv] | 177 |
|
| 4 | could be [vb pp] [adv] [adj] | 39 |
|
