| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] [adv] [prep] | 1334 |
|
| 2 | to have [been] [v-ing] [prep] | 55 |
|
| 3 | to have [been] [adv] [prep] | 31 |
|
| 4 | to have [been] [v-ing] [adv] | 27 |
|
