| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [verb] for [adj] month | 22 |
|
| 2 | [vb past] be [verb] for [adj] months | 22 |
|
| 3 | had be [verb] for [adj] month | 20 |
|
| 4 | [vb past] be [verb] for [num] month | 16 |
|
| 5 | [vb past] be [vb pp] for [adj] month | 14 |
|
| 6 | [vb past] be [v-ing] for [adj] month | 8 |
|
| 7 | [vb past] be [verb] for [det] month | 6 |
|
