| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be for [num] month | 14 |
|
| 2 | [be] for [num] month | 14 |
|
| 3 | [be] for [num] months | 13 |
|
| 4 | [be] for six month | 6 |
|
| 5 | [was/were] for [num] month | 6 |
|
| 6 | was for [num] month | 6 |
|
