| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] for [adj] | 455 |
|
| 2 | [been] [v-ing] for [num] | 198 |
|
| 3 | [been] [verb] for twenty | 16 |
|
| 4 | [be] [v-ing] for twenty | 14 |
|
| 5 | [been] [v-ing] [prep] twenty | 12 |
|
| 6 | [been] [v-ing] for twenty | 12 |
|
