| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] has [been] [det] | 410 |
|
| 2 | has [been] [det] [noun] | 358 |
|
| 3 | [ex0] has [been] [noun] | 185 |
|
| 4 | [ex0] [been] [det] [noun] | 29 |
|
