| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] up to | 10177 |
|
| 2 | [v-ing] up to | 1800 |
|
| 3 | building up [prep] | 148 |
|
| 4 | build up to | 113 |
|
| 5 | building [adv prt] to | 33 |
|
| 6 | building [adv] to | 33 |
|
| 7 | building up to | 31 |
|
