| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | main problem [be] [conj] [pron] | 12 |
|
| 2 | main problem [be] [that] [pron] | 12 |
|
| 3 | main problem [be] that [pron] | 12 |
|
| 4 | main problem be [conj] [pron] | 12 |
|
| 5 | main problem [be] that [pron] | 12 |
|
| 6 | main problem [be] [conj] [pron] | 10 |
|
| 7 | main problem [be] [conj] [pers pn] | 9 |
|
| 8 | main problem is [conj] [pron] | 8 |
|
| 9 | main problem [is] [conj] [pron] | 8 |
|
