| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [vb pp] [det] [noun] | 64 |
|
| 2 | it has [been] [vb pp] [det] [noun] | 47 |
|
| 3 | it have [been] [vb pp] [det] [noun sg] | 44 |
|
| 4 | it have [been] [vb pp] that [noun] | 38 |
|
| 5 | it have [been] [vb pp] [det] [noun pl] | 19 |
|
| 6 | it have [been] [vb pp] [det] time | 15 |
|
| 7 | it have [been] [vb pp] [det] times | 13 |
|
| 8 | it have [been] [vb pp] several [noun] | 12 |
|
| 9 | it had [been] [vb pp] [det] [noun] | 10 |
|
| 10 | it have [been] suggested [det] [noun] | 9 |
|
| 11 | it 's [been] [vb pp] [det] [noun] | 7 |
|
| 12 | it have [been] reported [det] [noun] | 5 |
|
| 13 | it have [been] [vb pp] many [noun] | 5 |
|
