| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have [been] a [noun] | 816 |
|
| 2 | it [vb mod] have [been] a | 481 |
|
| 3 | it have [been] a [noun] | 378 |
|
| 4 | it [vb mod] have [been] [noun] | 172 |
|
| 5 | it [vb mod] have a [noun] | 88 |
|
