| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [verb] [prep] a | 282 |
|
| 2 | it have been [vb pp] [prep] a | 260 |
|
| 3 | it has been [verb] [prep] a | 144 |
|
| 4 | it had been [verb] [prep] a | 94 |
|
| 5 | it have been [verb] as a | 67 |
|
| 6 | it have been [verb] as a | 67 |
|
| 7 | it have been [verb] by a | 60 |
|
| 8 | it have been [verb] by a | 60 |
|
| 9 | it 's been [verb] [prep] a | 42 |
|
| 10 | it have been [verb] for a | 26 |
|
| 11 | it have been [verb] for a | 26 |
|
| 12 | it have been [verb] in a | 25 |
|
| 13 | it have been [verb] in a | 25 |
|
| 14 | it have been [verb] to a | 24 |
|
| 15 | it have been [verb] to a | 24 |
|
| 16 | it have been [v-ing] [prep] a | 22 |
|
| 17 | it have been [verb] on a | 20 |
|
| 18 | it have been [verb] into a | 20 |
|
| 19 | it have been [verb] into a | 20 |
|
| 20 | it have been [verb] on a | 20 |
|
| 21 | it have been [verb] with a | 18 |
|
| 22 | it have been [verb] with a | 18 |
|
| 23 | it have been used [prep] a | 15 |
|
| 24 | it have been use [prep] a | 15 |
|
| 25 | it have been [verb] at a | 9 |
|
| 26 | it have been [verb] at a | 9 |
|
| 27 | it have been built [prep] a | 7 |
|
| 28 | it have been know [prep] a | 7 |
|
| 29 | it have been known [prep] a | 7 |
|
| 30 | it have been build [prep] a | 7 |
|
