| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] problem [is] that | 239 |
|
| 2 | main [noun] [is] that | 180 |
|
| 3 | main problem [be] that | 33 |
|
| 4 | main problem [is] [that] | 23 |
|
| 5 | main problem [is] that | 23 |
|
| 6 | main problem [is] [conj] | 23 |
|
