| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] [prep] | 17164 |
|
| 2 | [verb] [been] [v-ing] [prep] | 6063 |
|
| 3 | have [been] [v-ing] [prep] | 6060 |
|
| 4 | [vb -s] [been] [v-ing] [prep] | 1397 |
|
| 5 | has [be] [v-ing] [prep] | 1064 |
|
