| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is when [noun pl] | 35 |
|
| 2 | is when [noun sg] | 26 |
|
| 3 | is when [noun prp] | 20 |
|
| 4 | is when [n mass] | 8 |
|
| 5 | is when people | 7 |
|
| 6 | is when people | 7 |
|
