| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [was/were] [art] [noun] | 18082 |
|
| 2 | [noun sg] [was/were] [art] [noun] | 11763 |
|
| 3 | problem [be] [art] [noun] | 186 |
|
| 4 | problem [was/were] [art] [noun] | 66 |
|
