| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [verb] [prep] | 981 |
|
| 2 | [pron] has been [v-ing] [prep] | 328 |
|
| 3 | [pers pn] has been [v-ing] [prep] | 155 |
|
| 4 | it have been [v-ing] [prep] | 131 |
|
| 5 | it [verb] been [v-ing] [prep] | 131 |
|
| 6 | it [vb -s] been [v-ing] [prep] | 89 |
|
| 7 | it has [be] [v-ing] [prep] | 45 |
|
| 8 | it has be [v-ing] [prep] | 45 |
|
| 9 | it has been [v-ing] [prep] | 45 |
|
| 10 | it has [been] [v-ing] [prep] | 45 |
|
