| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] for six months | 44 |
|
| 2 | be [v-ing] for [adj] months | 28 |
|
| 3 | be [v-ing] for [num] months | 21 |
|
| 4 | be [v-ing] for six [noun pl] | 15 |
|
| 5 | be [v-ing] for six [noun] | 15 |
|
| 6 | be [v-ing] [prep] six months | 9 |
|
| 7 | be [v-ing] [prep] six months | 9 |
|
| 8 | [be] [v-ing] for six months | 7 |
|
| 9 | be [v-ing] for six months | 7 |
|
| 10 | be [v-ing] for six months | 7 |
|
| 11 | be [v-ing] for six month | 7 |
|
