| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] less [subord] a week | 20 |
|
| 2 | [prep] less [subord] a week | 20 |
|
| 3 | [prep] less than a week | 20 |
|
| 4 | in less [subord] a week | 10 |
|
| 5 | in less [subord] a week | 10 |
|
| 6 | for less [subord] a week | 6 |
|
| 7 | for less [subord] a week | 6 |
|
