| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] a [noun] | 51072 |
|
| 2 | [is] a [noun sg] | 49571 |
|
| 3 | [be] a pen | 22 |
|
| 4 | [is] [art] pen | 20 |
|
| 5 | [is] [art] pen | 20 |
|
| 6 | [is] a pen | 18 |
|
| 7 | [is] a pen | 18 |
|
