| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [v-ing] for [adj] years | 145 |
|
| 2 | been [v-ing] for [num] years | 108 |
|
| 3 | been [verb] for twenty years | 10 |
|
| 4 | been [v-ing] for twenty [noun pl] | 9 |
|
| 5 | been [v-ing] for twenty [noun] | 9 |
|
| 6 | be [v-ing] for twenty years | 8 |
|
| 7 | [be] [v-ing] for twenty years | 8 |
|
| 8 | been [v-ing] for twenty years | 8 |
|
| 9 | been [v-ing] [prep] twenty years | 8 |
|
| 10 | been [v-ing] for twenty year | 8 |
|
| 11 | [been] [v-ing] for twenty years | 8 |
|
