| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] less [subord] a month | 21 |
|
| 2 | [prep] less [subord] a month | 21 |
|
| 3 | [prep] less than a month | 21 |
|
| 4 | in less [subord] a month | 11 |
|
| 5 | in less [subord] a month | 11 |
|
| 6 | for less [subord] a month | 7 |
|
| 7 | for less [subord] a month | 7 |
|
