| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [prep] a time | 171 |
|
| 2 | [be] [verb] [indef pn] [prep] a | 80 |
|
| 3 | [verb] [indef pn] [prep] a time | 50 |
|
| 4 | [be] [verb] [indef pn] [prep] time | 6 |
|
