| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [prep] a doubt the | 6 |
|
| 2 | [is] [prep] a doubt the | 6 |
|
| 3 | be [prep] a doubt the | 6 |
|
| 4 | is [prep] a doubt the | 5 |
|
| 5 | [prep] a doubt the [adj] | 7 |
|
| 6 | [prep] a doubt the [adj -est] | 6 |
|
