| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [v-ing] | 19916 |
|
| 2 | have [been] [v-ing] | 19902 |
|
| 3 | have [been] [verb] | 9030 |
|
| 4 | [vb infin] [been] [v-ing] | 1214 |
|
| 5 | have [be] [v-ing] | 1167 |
|
