| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [det] doubt | 14 |
|
| 2 | [verb] been [det] doubt | 14 |
|
| 3 | [verb] [been] some doubt | 7 |
|
| 4 | have [been] [det] doubt | 5 |
|
| 5 | [vb infin] [been] [det] doubt | 5 |
|
| 6 | [vb past] [been] [det] doubt | 5 |
|
