we have only develop vs we have only developed

Some examples from the web:

• However, e-commerce can only develop its full potential if adequate postal services are provided.
• Quartz crystals only develop an electrical potential when they're put under physical pressure.
• Guinan, those skills only develop after years of experience.
• I am certain that we can only develop the internal market further if we coordinate all our national economies.
• The tyre industry can only develop solutions once requirements are known, therefore a 36 month lead in time for implementing new standards is proposed.
• My colleagues and I are firmly convinced that a society can only develop properly on a democratic basis.
• That society can only develop if it takes into account pluriformity, human rights and political opposition.
• Europe will only develop if it does not create conflict, but cooperation in the social and economic area.
• So I am for entrepreneurship, without a doubt, but I think enterprise can only develop if we create the collective conditions for growth in Europe.
• A European market can only develop if the regulatory framework is consistent over all European territory.
• We can only develop their awareness through an information campaign and by introducing rigorous measures to accompany it.
• However, this potential will only develop if it engages in a major overhaul of its trade and economic policies.
• Fair competition between service providers can only develop when comparable employment conditions exist among the various postal service providers.
• I cannot stress strongly enough that countries cannot only develop on the basis of governments and business; social organizations also play a key part in building up a society.
• Paragraph 3, which asks that it should be made clear to the Chinese authorities that a genuine partnership can only develop when shared values are fully respected and put into practice, ends up being hypocritical.
• Advanced Emergency Braking System: Industry can only develop mandatory systems if it has clearly defined technical specifications and these, according to information available, do not exist in the case of AEBS.
• We can only develop our work in guaranteeing the future rights of the consumer, the health of the public and the safe, clean environment if we put our money where our mouth is and spend the cash that is needed.
• However, a genuine partnership can only develop on the basis of shared common values, in particular democracy, the rule of law and respect for human and civil rights.
• In the area of customs controls, as elsewhere, I am convinced that Europe can only develop through greater combination of effort and by the pooling of our respective resources so that we can give our citizens the level of protection they desire.
• The EU can only develop and establish itself if it is based on values such as solidarity, non-violence, law and order and the resolute promotion of public non-violence.

Some examples from the web:

• NGOs have only developed in China since the beginning of reforms in 1978.
• The police department only developed this tech weeks ago.
• We were the only developed country without any form of wage protection.
• We must also remember that generic products are only developed due to innovation.
• My brother Mycroft has the same talent, only developed to a far greater degree of perfection.
• Article 4 of the proposal merely mentions allocated expenditure, but the concept is only developed in the Commission working document on the UK correction.
• Yet when that serves to promote only developed economies and our competitors, we will clearly only be financing those who do not need financing.
• If that is the case, it will mean that the outgoing Commission has not only developed good relations with Parliament but has also laid the groundwork for democracy to grow even stronger in Europe.
• Look! I only developed it, and I didn't tell the A.I. to do any of that!
• However, the variety 420 A may have only two well-developed roots, provided that they are on opposite sides.
• It underlines that this strategy can only be developed on the basis of multilateralism and the UN system.
• The laws on animal welfare should only be developed and improved with the involvement of those concerned.
• Interoperability should not only be developed between electronic road systems, but also stay open to other modes (intermodality).
• I would mention, for instance, the Galileo project, where a new European infrastructure could only be developed by using an extensive base.
• This type of research will only be developed if it really is a solution that is scientifically proven to be necessary.
• Only a developed trading system and economic development provide a real basis on which to lift people out of poverty and influence the environment.
• Their variety of resources and potential for alternative sources of energy can only be developed through an eco-systematic approach and with integrated management plans.
• The choice of biofuels can only be developed if the Commission establishes a binding comprehensive certification system with strict social and environmental criteria.
• European law in general and contractual law in particular can only be developed by establishing certain principles.
• At last there is a single document with targets which can hopefully only be developed.