| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] difficult [to-vb] that | 30 |
|
| 2 | [pron] [was/were] difficult [to-vb] that | 30 |
|
| 3 | it [was/were] difficult [to-vb] that | 30 |
|
| 4 | [pers pn] [was/were] difficult [to-vb] that | 30 |
|
| 5 | [was/were] [adv] difficult [to-vb] that | 9 |
|
| 6 | [was/were] not difficult [to-vb] that | 6 |
|
| 7 | [was/were] [not/n't] difficult [to-vb] that | 6 |
|
| 8 | [was/were] difficult [to-vb] that [pron] | 11 |
|
| 9 | [was/were] difficult [to-vb] that [pers pn] | 10 |
|
| 10 | [was/were] difficult [to-vb] that [art] | 9 |
|
| 11 | [was/were] difficult [to-vb] that [art] | 9 |
|
| 12 | [was/were] difficult [to-vb] that the | 6 |
|
| 13 | [was/were] difficult [to-vb] that the | 6 |
|
| 14 | [was/were] difficult [to-vb] that [adj] | 6 |
|
| 15 | [was/were] difficult [to-vb] that [det] | 5 |
|
