| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | become [adv] | 1202 |
|
| 2 | become [adv] | 1189 |
|
| 3 | [verb] easier | 217 |
|
| 4 | become easier | 63 |
|
| 5 | [vb infin] easier | 17 |
|
| 6 | become easier | 6 |
|
