| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [is] [conj] [art] | 3923 |
|
| 2 | [noun sg] [is] [conj] [art] | 3477 |
|
| 3 | problem [be] [conj] [art] | 190 |
|
| 4 | problem [is] [conj] [art] | 156 |
|
| 5 | problem [is] [conj] [art] | 152 |
|
