| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [verb] [adv prt] [prep] | 409 |
|
| 2 | could [be] [verb] [adv prt] [prep] | 409 |
|
| 3 | [modal v] [be] [verb] [adv prt] for | 239 |
|
| 4 | could [be] [verb] [adv] for | 47 |
|
| 5 | could [be] [verb] [adv prt] for | 23 |
|
| 6 | could [be] [verb] [adv prt] for | 23 |
|
