| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] [prep] a [adj] period | 24 |
|
| 2 | been [vb pp] [prep] a [adj] period | 18 |
|
| 3 | been [verb] for a [adj] period | 9 |
|
| 4 | been [verb] over a [adj] period | 8 |
|
| 5 | been [v-ing] [prep] a [adj] period | 7 |
|
| 6 | been [verb] [prep] a long period | 6 |
|
| 7 | been [verb] [prep] a long period | 6 |
|
| 8 | been [verb] through a [adj] period | 5 |
|
| 9 | been go [prep] a [adj] period | 5 |
|
| 10 | been going [prep] a [adj] period | 5 |
|
