| tough on | 37.26 | Both are tough on crime. | ||
| tough for | 19.29 | It was tough for him. | ||
| tough as | 9.15 | W is tough as nails. | ||
| tough with | 9.02 | Foreigners get tough with Bosnians. | ||
| tough in | 7.77 | Life is tough in the NFL. | ||
| tough to | 5.86 | It is tough to not score. | ||
| tough against | 2.90 | The Bears are tough against the run. | ||
| tough at | 2.30 | Life is tough at the top. | ||
| tough about | 1.84 | But they were tough about it. | ||
| tough from | 0.66 | It was tough from that standpoint. | ||
| tough out | 0.66 | Times have been tough out here in the City of Angels. | ||
| tough without | 0.53 | Will be tough without Ricky Williams. | ||
| tough because_of | 0.46 | His teams were mentally tough because of Don Haskins. | ||
| tough by | 0.46 | Henin is resilient by nature, tough by circumstance. | ||
| tough after | 0.39 | All of a sudden the opposing pitcher becomes very tough after that. | ||
| tough but | 0.33 | She is Texas tough but Wall Street smart. | ||
| tough during | 0.33 | It is expected to be as tough during a four-game series against the Colorado Rockies at Coors Field that begins tonight. | ||
| tough toward | 0.33 | Levy, on the other hand, is reportedly upset that Netanyahu remains too tough toward them. | ||
| tough until | 0.33 | They played very tough until the end. | ||
| tough through | 0.26 | But in reality, it takes someone to be mentally tough through that. |