| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] at the time of | 49 |
|
| 2 | [adv prt] at the time of | 30 |
|
| 3 | [be] [adv prt] at the time | 26 |
|
| 4 | [be] [adv prt] the time of | 7 |
|
