| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [v-ing] for | 50 |
|
| 2 | it has been [v-ing] [prep] | 45 |
|
| 3 | it 's been [v-ing] [prep] | 44 |
|
| 4 | it had been [v-ing] [prep] | 41 |
|
| 5 | it have been [v-ing] on | 20 |
|
| 6 | it have been going [prep] | 18 |
|
| 7 | it have been [v-ing] in | 16 |
|
| 8 | it have been [v-ing] with | 14 |
|
| 9 | it have been [v-ing] at | 8 |
|
| 10 | it have been running [prep] | 8 |
|
| 11 | it have been working [prep] | 6 |
|
| 12 | it have been raining [prep] | 5 |
|
| 13 | it have been travelling [prep] | 5 |
|
| 14 | it have been [v-ing] to | 5 |
|
