Out ability to expend our relationship vs Out ability to extend our relationship

Some examples from the web:

• Girls, girls... are we trying to vitalise custom in the store or are we contented to expend our energy on tittle-tattle the day long?
• "expend our spirit in the waste of shame."
• I'm not going to expend colony resources on a hunch.
• We now have to expend a great deal of effort on closing these gaps.
• What we also do not need is to expend EU resources on spectacular celebrations.
• How pedestrian to expend all that effort on a mere demon.
• Seems like a lot of effort to expend for trophies.
• whos valuable enough to expend limited resources on.
• Dubai has no water, but it can afford to expend immense amounts of energy to desalinate seawater and build the highest skyscrapers in the world.
• But, these two days and one night, you have to expend your utmost ability.
• Thirdly, it is a disgrace for the EU to expend so much energy protecting its own agricultural production.
• There are enough other pressing tasks for the Commission to expend its energies on.
• Mr President, we have finite resources to expend on environmental improvement, even in the developed West.
• I regret that circumstances caused me to endanger our relationship.
• Victoria asked me to rekindle our relationship.
• I thought our relationship was stronger than that.
• Our relationship was based on that.
• Our relationships were... warm, spontaneous, caring.
• I've never understood our relationship.
• I call the shots in our relationship.

Some examples from the web:

• They want to extend our honeymoon tour by six months...
• The least we can do is to extend our hospitality.
• I would like to extend our special thanks for this.
• Certain events have compelled us to extend our travels.
• We would be willing to extend our visit, sir.
• We also need to extend our citizens' right of access to documents.
• On energy we are looking urgently to extend our Energy for Democracy programme across Serbia.
• You know, I think we could see clear to extend our hospitality.
• As such, we would like to extend our most sincere apologies for what's happened here.
• In 12 hours, 320 people will be sacrificed to extend our oxygen supply unless we take action.
• And once again, on behalf of the harbor inn, we want to extend our deepest apologies if there was any sort of misunderstanding.
• I'm thinking I want to extend our medical supervision for a longer period of time.
• We would also like to extend our sincere apologies to Mr. Walker and his family.
• Phryne, at this rate, I'm afraid we may have to extend our stay.
• We also want to extend our condolences to the family of norberto rivera, who died trying to help Mr. Jane.
• We need to extend our support to their loved ones as much as we can during this difficult time.
• It has helped us to extend our physical selves, go faster, hit things harder, and there's been a limit on that.
• Our task is to extend our hand in peace, justice and reconciliation.
• Splendid. Please come down and allow us to extend our hospitality to you and your crew.
• I'm not looking to extend our survival underground.