| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] is doubtful [conj] [det] [noun pl] | 8 |
|
| 2 | it is doubtful [conj] [det] [noun pl] | 8 |
|
| 3 | [pers pn] is doubtful [subord] [det] [noun pl] | 6 |
|
