| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they 've been [verb] [prep] a | 21 |
|
| 2 | they 've [been] [verb] [prep] a | 21 |
|
| 3 | they 've [been] [verb] [prep] a | 18 |
|
| 4 | they 've [been] [vb pp] [prep] a | 15 |
|
| 5 | they 've [been] [verb] for a | 7 |
|
| 6 | they 've [been] [verb] for a | 7 |
|
| 7 | they 've [been] [v-ing] [prep] a | 6 |
|
