| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it often [verb] | 280 |
|
| 2 | it often [vb -s] | 227 |
|
| 3 | it often [vb past] | 47 |
|
| 4 | it often happen | 38 |
|
| 5 | it often happens | 34 |
|
| 6 | it often do | 25 |
|
| 7 | it often seem | 24 |
|
| 8 | it often does | 20 |
|
| 9 | it often seems | 20 |
|
| 10 | it often take | 16 |
|
| 11 | it often takes | 13 |
|
| 12 | it often mean | 9 |
|
| 13 | it often help | 8 |
|
| 14 | it often involve | 8 |
|
| 15 | it often involves | 8 |
|
| 16 | it often helps | 8 |
|
| 17 | it often have | 7 |
|
| 18 | it often meant | 7 |
|
| 19 | it often appear | 7 |
|
| 20 | it often make | 7 |
|
| 21 | it often has | 6 |
|
| 22 | it often occur | 6 |
|
| 23 | it often lead | 5 |
|
| 24 | it often did | 5 |
|
| 25 | it often come | 5 |
|
| 26 | it often occurs | 5 |
|
