| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [be] so hard that | 7 |
|
| 2 | [noun sg] [be] so hard that | 7 |
|
| 3 | [be] [verb] so hard that | 6 |
|
| 4 | [be] so hard that [pron] | 9 |
|
| 5 | [be] so hard that [pers pn] | 7 |
|
