| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] [prep] some | 112 |
|
| 2 | [been] [v-ing] [prep] years | 84 |
|
| 3 | [v-ing] [prep] some years | 16 |
|
| 4 | [been] [prep] some years | 7 |
|
