| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [verb] [adv prt] | 812 |
|
| 2 | could be [verb] [adj] | 422 |
|
| 3 | be [verb] [adv prt] [adj] | 307 |
|
| 4 | could [verb] [adv prt] [adj] | 239 |
|
| 5 | could be [adv prt] [adj] | 7 |
|
