| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be when | 221 |
|
| 2 | was when | 185 |
|
| 3 | been when | 117 |
|
| 4 | are when | 79 |
|
| 5 | were when | 28 |
|
| 6 | is when | 28 |
|
| 7 | 's when | 13 |
|
| 8 | 're when | 9 |
|
| 9 | 'm when | 5 |
|
