No | Pattern | Freq | Relations |
---|---|---|---|
1 | could [adv] [be] maintain | 14 | |
2 | could [adv] [be] maintained | 14 | |
3 | could [adv] be maintain | 14 | |
4 | could not [be] maintain | 9 | |
5 | could [not/n't] [be] maintain | 9 | |
6 | could not [be] maintain | 9 | |
7 | could [adv] [be] maintain | 5 |