Preposition: of

• communism: The public downfall of Communism came as a disaster.

• capitalism: Former millionaires began repeating prophecies of the downfall of capitalism with as much sincerity as if they had been Karl Marx himself.

• empire: The downfall of the Empire in 1870 put an end to his exile.

• regime: Prompt truthful reports to which the public has access accelerate the downfall of regimes based on lies.

• government: Many revolutionaries have placed their hope in the downfall of a government.

• man: This results in the downfall of the first not all-good man.

Possessives

• film: However, the film's ultimate downfall is the climax, toward which the tale has been heading for some 90 minutes.

Converse of object

• hasten: But some in the opposition say the move is more likely to inflame political rivalries than hasten the downfall of Saddam Hussein.

• plot: From here, They are safe to develop Their theories, gain new converts, and plot the downfall of Their enemies.

• prove: They cobbled the evidence together, which was later to prove the downfall of Sam Cole.

• cause: Only seven years later further events in the north caused the downfall of the English King.

• follow: Isn't that just what happened in Baghdad, following the downfall of Saddam Hussain?

• see: All are happy to see the downfall of Saddam.

Adjective modifier

• eventual: One of the reasons for their eventual downfall was their love of publicity.

• inevitable: It is our urgent task to accelerate its inevitable downfall.

• ultimate: However, the film's ultimate downfall is the climax, toward which the tale has been heading for some 90 minutes.

• subsequent: The plot brought to life the story of the first Russian cosmonaut and his subsequent downfall.

• own: How did the Tories contribute to their own downfall?

• big: Only big downfall is you are stuck with original amount of fused circuits.

Preposition: in

• market: It is ironic that having a good accountant can actually be your downfall in the mortgages market.