I am decided to work vs I am decided for working

Some examples from the web:

• And then we decided to work with society.
• The world's leaders decided to work towards attaining the MDGs, recognising that defeating poverty is a global challenge.
• I decided to work from home to avoid contamination by the outside world.
• I decided to work at a hospital on the mainland.
• You've decided to work with us.
• Happier since you decided to work with him.
• Tell me you decided to work with Trevor.
• So you decided to work with him.
• Rand has decided to work with us.
• Officials from the various Member States got together and decided to work together.
• I decided to work my way down from this hill towards a waterhole.
• The thing is, Hanna, there are a few of us goddesses who have decided to work together.
• That's why we've decided to work together as a team, Carol...
• We decided to work amid everyone.
• Well, I'm so glad you decided to work on this case, Mr. Jane.
• But after that, I decided to work on the spirit.
• I just came by to bring you dinner in case you decided to work late again.
• Your people changed the balance of power when they decided to work for the royal families.
• We have chiefly lost young multilingual people, who have decided to work in the western part of the European Union, attracted there by better conditions.
• I wasn't feeling well, so I decided to work from home for a bit.

Some examples from the web:

• Since I decided to stop working.
• I've decided against working for you.
• In further amendments to the Commission's text, MEPs decided that working hours should be organised in such a way as to give employees the opportunity for life-long learning.
• I've decided to quit working for you.
• I've decided to keep working at the company.
• Designed by Tony Stark, until he decided to stop working on SHIELD projects.
• The Council has decided to partition working time into active and inactive segments.
• Because the best I can come up with is that your husband decided that working on his research until his brain gave out was more important to him than cryonically preserving himself.
• The working group decided that further discussion is needed.
• Plus, my conditioner decided to stop working and I think I have brittle bones.
• In the circumstances, the SC decided to establish new working practices with OLAF to implement the Court's ruling.
• Should it be decided to continue working on a proposal for a formal decision, then devising the further details will not be possible until during the Greek Presidency.
• Therefore, the Commission has decided to start working on a legislative initative intended to solve the difficulties for the registration of motor vehicles previously registered in another Member State.
• The Council decided to start working on a mid-and long-term strategy on Cuba.'
• But I decided I'd start working with the weapon... so I'd be more in-the-moment when it comes.
• It was proposed that the exceptions should be removed altogether, so as to eliminate any review of jurisdiction whatsoever, but after careful consideration the ad hoc working party decided that this would be premature.
• The Third Conference of the Parties to the WHO Framework Convention decided to establish a working group for the elaboration of guidelines for implementation of that Article.
• When I was 3... my father decided he was done working in dusty fields... that never grew anything.
• Instead, Denmark decided to tax persons working on board sand dredgers according to the taxation general rules and subsequently to refund the tax to the vessel owners once the conditions for this are met.
• I DECIDED THAT... WORKING ALL NIGHT AND GOING TO SCHOOL DURING THE DAY WAS COUNTERPRODUCTIVE TO MY GOALS.