| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [v-ing] [prep] [adj] | 244 |
|
| 2 | has [been] [verb] [prep] several | 92 |
|
| 3 | has [been] [v-ing] [prep] [det] | 87 |
|
| 4 | have [been] [v-ing] [prep] several | 25 |
|
| 5 | [verb] [been] [v-ing] [prep] several | 25 |
|
| 6 | has [been] [v-ing] [prep] several | 7 |
|
| 7 | has [been] [v-ing] [prep] several | 7 |
|
| 8 | [vb -s] [been] [v-ing] [prep] several | 7 |
|
| 9 | has [be] [v-ing] [prep] several | 7 |
|
