| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] since [num ord] | 41 |
|
| 2 | [verb] since last | 37 |
|
| 3 | [vb pp] since [num ord] | 36 |
|
| 4 | [v-ing] since [num ord] | 5 |
|
