| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it [verb] [verb] | 538 |
|
| 2 | when it [vb -s] [verb] | 333 |
|
| 3 | when it [verb] [vb pp] | 240 |
|
| 4 | when it have [verb] | 214 |
|
| 5 | when it [vb past] [verb] | 205 |
|
| 6 | when it [verb] [to-vb] | 190 |
|
| 7 | when it 's [verb] | 103 |
|
| 8 | when it come [verb] | 81 |
|
| 9 | when it had [verb] | 62 |
|
| 10 | when it comes [verb] | 60 |
|
| 11 | when it do [verb] | 52 |
|
| 12 | when it [verb] [vb infin] | 51 |
|
| 13 | when it has [verb] | 49 |
|
| 14 | when it [verb] [v-ing] | 42 |
|
| 15 | when it does [verb] | 33 |
|
| 16 | when it [verb] go | 29 |
|
| 17 | when it begin [verb] | 24 |
|
| 18 | when it [verb] do | 24 |
|
| 19 | when it start [verb] | 22 |
|
| 20 | when it came [verb] | 21 |
|
| 21 | when it become [verb] | 21 |
|
| 22 | when it [verb] come | 20 |
|
| 23 | when it became [verb] | 19 |
|
| 24 | when it did [verb] | 19 |
|
| 25 | when it [verb] gone | 19 |
|
| 26 | when it [verb] know | 17 |
|
| 27 | when it [verb] finished | 17 |
|
| 28 | when it [verb] finish | 17 |
|
| 29 | when it [verb] known | 17 |
|
| 30 | when it began [verb] | 16 |
|
