| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] [det] [subord] a [noun] | 198 |
|
| 2 | [is] [det] [subord] a [noun] | 113 |
|
| 3 | [is] [indef pn] [det] [subord] a | 56 |
|
| 4 | [is] [indef pn] [det] [subord] [noun] | 17 |
|
