| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [v-ing] [prep] [adj] years | 154 |
|
| 2 | been [v-ing] on [prep] [adj] | 63 |
|
| 3 | [v-ing] on [prep] [adj] years | 25 |
|
| 4 | been [v-ing] on [prep] years | 15 |
|
