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