Portugal's small but useful Second World War navy

What warships did the Portuguese Navy have during the 1939-1945 period?

Portugal operated a compact force of destroyers, submarines, and sloops whose minelaying and patrol capabilities supported an active neutrality.

The answer works through the Duro-class destroyers, Vickers-built submarines, and British-influenced sloops such as the Gonçalo Velho and Afonso de Albuquerque classes. Although small, the fleet gave Portugal tools for coastal presence, minelaying, and enforcing an active neutrality that could inconvenience belligerents. British builders and designs strongly shaped much of the force.