we had import fridge vs we had imported fridge

Some examples from the web:

• There are no European companies producing this model, so they don't need protecting, and the only other company that manufacturers the 3DBF, Whirlpool, imports such fridges from the USA.
• Had imports increased to a lesser degree, this price pressure would also have been lower.

Some examples from the web:

• Countries that had imported animals from the UK slaughtered livestock which could have come into direct or indirect contact with the virus.
• In opening up its borders, the EU had imported poverty as well as given rise to "casual and precarious" employment.
• In opening up its borders, the EU had imported poverty as well as given rise to "casual and precarious" employment.
• He specifically acknowledged that Morocco had imported into Europe quantities of tomatoes and courgettes in excess of the authorised quotas.
• To this end, Farm Dairy had imported a special machine from the United States to manufacture these containers.
• In January 2000, the FAO warned all countries which had imported cattle or MBM from Western Europe during and since the 1980s that they had a high risk of BSE occurring.
• In May 2006, it became known that six zoos in the USA, all affiliated to the Association of Zoos and Aquariums (AZA), had imported a total of 33 young monkeys of five different species from South Africa.
• Some parties claimed that, since both complainants had imported the product concerned during the IP, they should not be considered part of the Union industry.
• However, the Community industry did not purchase any products from the PRC after 2001 and had imported it before that year only in negligible quantities (around 1 % of their own production).
• In April 2001, the FAO warned that the occurrence of BSE in countries outside Western Europe which had imported contaminated feed or bovine animals in the 1980s and 1990s had not been detected owing to the absence of effective monitoring, surveillance and risk management systems.
• This positive trend became more pronounced during the review investigation period when one of the cooperating Community producers started the production in the Community of one type of the like product which it only had imported previously.
• In the questionnaire response by company A, it appeared that company A, in addition to its own Community manufacturing, also had imported the product concerned from the countries concerned.
• He specifically acknowledged that Morocco had imported into Europe quantities of tomatoes and courgettes in excess of the authorised quotas.