| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] for [adj] months | 240 |
|
| 2 | [be] [verb] [prep] 18 months | 37 |
|
| 3 | [be] [verb] [prep] 18 months | 37 |
|
| 4 | [be] [verb] for 18 [noun pl] | 28 |
|
| 5 | [be] [verb] for 18 [noun] | 28 |
|
| 6 | [be] [verb] for 18 month | 20 |
|
| 7 | [be] [verb] for 18 months | 20 |
|
