| tougher time | 14.02 | I had a tougher time doing that. | ||
| tougher law | 12.31 | So what about tougher laws? | ||
| tougher action | 11.32 | She says tougher action is needed. | ||
| tougher standard | 11.26 | Again, Christians have a tougher standard. | ||
| tougher line | 9.87 | Other speakers took a tougher line. | ||
| tougher measure | 8.95 | The decree calls for tougher measures, however. | ||
| tougher penalty | 8.95 | Government urges tougher penalties. | ||
| tougher stance | 7.83 | Japan needs to take a tougher stance. | ||
| tougher sanction | 7.24 | Subsequent offenses will bring tougher sanctions. | ||
| tougher competition | 6.25 | He also can expect much tougher competition. | ||
| tougher rule | 4.94 | Tougher rules may be coming. | ||
| tougher sentence | 4.81 | ...demands for tougher sentences. | ||
| tougher regulation | 4.61 | Tougher regulations are only part of the story. | ||
| tougher restriction | 3.82 | Others are enforcing tougher restrictions. | ||
| tougher stand | 3.82 | But he took a tougher stand on Iran. | ||
| tougher policy | 3.69 | - He wants tougher policies toward Cuba. | ||
| tougher enforcement | 3.62 | Tougher enforcement. | ||
| tougher challenge | 3.49 | Ours is a tougher challenge. | ||
| tougher punishment | 3.09 | Will it be the players who advocate tougher punishment? | ||
| tougher approach | 2.83 | Sometimes, a tougher approach is necessary. |