| gas be | 15.01 | Gas was cheap. | ||
| gas come | 1.84 | Where exactly does this gas come from? | ||
| gas leak | 1.51 | Gas officials were investigating what caused the gas to leak. | ||
| gas cause | 1.38 | Greenhouse gases cause global warming. | ||
| gas escape | 1.12 | No gas escapes. | ||
| gas have | 0.99 | Gas has several attractive qualities. | ||
| gas seep | 0.92 | The gas is seeping out of the rocks. | ||
| gas begin | 0.86 | The gas began flowing in January. | ||
| gas become | 0.72 | But as gas has become more available, that is changing. | ||
| gas go | 0.72 | Gas is going up in price. | ||
| gas fire | 0.66 | The hot-water heat is fired by gas. | ||
| gas build_up | 0.59 | As a result, the gas builds up. | ||
| gas flow | 0.59 | Gas was flowing through a backup pipeline. | ||
| gas kill | 0.59 | When inhaled, hydrocyanic gas can kill within seconds. | ||
| gas remain | 0.59 | Even with the pipeline working, gas remains desperately short in Armenia. | ||
| gas explode | 0.53 | It did not know what caused the leaking gas to explode. | ||
| gas ignite | 0.53 | However, it was still unclear why the gas ignited. | ||
| gas overcome | 0.46 | Most were beaten or overcome by gas. | ||
| gas run | 0.46 | But the gas ran out. | ||
| gas spread | 0.46 | One doomsday scenario has toxic gas being spread through aerosol spray. |