| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] been [v-ing] for [adj] | 18 |
|
| 2 | it have [been] [v-ing] for [adj] | 18 |
|
| 3 | it [vb -s] [been] [v-ing] for [adj] | 14 |
|
| 4 | it [verb] [been] [v-ing] for [num] | 12 |
|
| 5 | it 's [been] [v-ing] for [adj] | 7 |
|
| 6 | it has [been] [v-ing] for [adj] | 7 |
|
| 7 | it [verb] [been] [v-ing] for [det] | 6 |
|
