| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] [prep] [det] years | 37 |
|
| 2 | [been] [v-ing] [prep] [det] [conj] | 19 |
|
| 3 | [been] [v-ing] [prep] years [conj] | 12 |
|
| 4 | [v-ing] [prep] [det] years [conj] | 9 |
|
