| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] that length of time | 17 |
|
| 2 | [prep] that length [prep] time | 17 |
|
| 3 | [prep] that length [prep] time | 17 |
|
| 4 | [prep] that length of time | 17 |
|
| 5 | for that length [prep] time | 10 |
|
| 6 | for that length [prep] time | 10 |
|
