| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] when used | 11 |
|
| 2 | [verb] if used | 9 |
|
| 3 | [vb pp] [subord] used | 9 |
|
| 4 | [vb infin] [subord] used | 6 |
|
| 5 | [v-ing] [subord] used | 5 |
|
