| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [v-ing] [prep] a | 22 |
|
| 2 | it [verb] been [v-ing] [prep] a | 22 |
|
| 3 | it [vb -s] been [v-ing] [prep] a | 15 |
|
| 4 | it 's been [v-ing] [prep] a | 12 |
|
| 5 | it [verb] been [v-ing] for a | 8 |
|
| 6 | it [verb] been [v-ing] for a | 8 |
|
| 7 | it [vb past] been [v-ing] [prep] a | 7 |
|
| 8 | it [verb] been going [prep] a | 6 |
|
| 9 | it had been [v-ing] [prep] a | 6 |
|
| 10 | it [verb] been [v-ing] on a | 5 |
|
| 11 | it [verb] been [v-ing] on a | 5 |
|
