| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [det] a [noun] | 370 |
|
| 2 | it be [det] a [noun sg] | 368 |
|
| 3 | it be [det] a mistake | 15 |
|
| 4 | it be [det] a mistake | 15 |
|
| 5 | it [be] [det] a mistake | 15 |
|
| 6 | [pers pn] be [det] a mistake | 15 |
|
| 7 | it be [det] [art] mistake | 15 |
|
| 8 | it be [det] a mistake | 15 |
|
| 9 | [pron] be [det] a mistake | 15 |
|
| 10 | it be [det] [art] mistake | 15 |
|
| 11 | it be [adj] a mistake | 15 |
|
