| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem is [conj] | 613 |
|
| 2 | problem [is] that | 581 |
|
| 3 | problem [is] that | 581 |
|
| 4 | problem [is] [that] | 581 |
|
| 5 | problem [is] [subord] | 24 |
|
| 6 | problem [is] whether | 12 |
|
| 7 | problem [is] whether | 12 |
|
| 8 | problem [is] if | 8 |
|
| 9 | problem [is] if | 8 |
|
| 10 | problem [is] [coord] | 8 |
|
| 11 | problem [is] and | 6 |
|
| 12 | problem [is] and | 6 |
|
