| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [adv] [be] [vb pp] | 1312 |
|
| 2 | [pron] could [be] [vb pp] [conj] | 600 |
|
| 3 | could [adv] [be] [vb pp] [conj] | 522 |
|
| 4 | [pron] could [adv] [be] [conj] | 62 |
|
| 5 | [pron] [adv] [be] [vb pp] [conj] | 60 |
|
