| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [pers pn] is doubtful [conj] | 50 |
|
| 2 | [coord] it is doubtful [conj] | 50 |
|
| 3 | [coord] [pers pn] is doubtful [subord] | 43 |
|
| 4 | [coord] [pers pn] is doubtful whether | 30 |
|
| 5 | [coord] [pers pn] is doubtful whether | 30 |
|
| 6 | but [pers pn] is doubtful [conj] | 28 |
|
| 7 | and [pers pn] is doubtful [conj] | 21 |
|
| 8 | [coord] [pers pn] is doubtful if | 13 |
|
| 9 | [coord] [pers pn] is doubtful if | 13 |
|
| 10 | [coord] [pers pn] is doubtful [that] | 7 |
|
| 11 | [coord] [pers pn] is doubtful that | 7 |
|
| 12 | [coord] [pers pn] is doubtful that | 7 |
|
