| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [det] doubt | 7 |
|
| 2 | could be [det] doubt | 7 |
|
| 3 | could [be] [det] doubt | 7 |
|
| 4 | could [be] [det] doubt | 7 |
|
| 5 | could [be] little doubt | 5 |
|
