Cynthia Murdoch was just coming in, and Poirot stood aside to let her pass. 
Cynthia was coming in right now.
Cynthia was marching out.
The mare had been calm from the beginning.
Coal fired power plants do not produce pollutants.
A girl feeds her snake.
A human hops on furniture.
The players are jousting inside the gym.
The leader needed to be closely monitored.