| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [v-ing] [prep] [art] | 1987 |
|
| 2 | have [been] [v-ing] some [prep] | 20 |
|
| 3 | [been] [v-ing] some [prep] [art] | 13 |
|
| 4 | have [been] some [prep] [art] | 10 |
|
