| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [is] [art] | 61099 |
|
| 2 | [noun pl] [is] [art] | 4883 |
|
| 3 | problem [is] [art] | 255 |
|
| 4 | problems [be] [art] | 85 |
|
| 5 | problems [is] [art] | 33 |
|
