| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to build up | 60 |
|
| 2 | [be] [v-ing] to build up | 32 |
|
| 3 | [be] [vb pp] to build up | 27 |
|
| 4 | [am/are] [verb] to build up | 17 |
|
| 5 | are [verb] to build up | 13 |
|
| 6 | [be] [verb] to build up | 12 |
|
| 7 | is [verb] to build up | 12 |
|
| 8 | be [verb] to build up | 12 |
|
| 9 | [is] [verb] to build up | 12 |
|
| 10 | [be] use to build up | 12 |
|
| 11 | [be] used to build up | 12 |
|
| 12 | [be] try to build up | 11 |
|
| 13 | [be] trying to build up | 10 |
|
| 14 | [was/were] [verb] to build up | 10 |
|
| 15 | [be] beginning to build up | 7 |
|
| 16 | [be] begin to build up | 7 |
|
| 17 | [been] [verb] to build up | 6 |
|
| 18 | was [verb] to build up | 6 |
|
| 19 | been [verb] to build up | 6 |
|
