No | Pattern | Freq | Relations |
---|---|---|---|
1 | [noun pl] could [vb infin] their | 163 | |
2 | [noun pl] could [verb] their | 163 | |
3 | [noun pl] [modal v] improve their | 16 | |
4 | [noun pl] [vb mod] improve their | 16 | |
5 | [noun] could improve their | 8 | |
6 | [noun pl] could improve [pron] | 5 | |
7 | [noun pl] could improve their | 5 | |
8 | [noun pl] could improve their | 5 |