| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | able to keep [adv prt] [prep] | 17 |
|
| 2 | able keep [adv prt] [prep] | 17 |
|
| 3 | able keep up [prep] | 13 |
|
| 4 | able keep [adv prt] with | 12 |
|
