| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [det] a [noun] | 370 |
|
| 2 | it be [det] a mistake | 15 |
|
| 3 | [pron] be [det] a mistake | 15 |
|
| 4 | [pers pn] be [det] a mistake | 15 |
|
| 5 | it be [adj] a mistake | 15 |
|
| 6 | it be [det] a mistake | 15 |
|
| 7 | it [be] [det] a mistake | 15 |
|
| 8 | it be [det] [art] mistake | 15 |
|
| 9 | it be [det] [art] mistake | 15 |
|
