He decided to transform his life.

I decided to change my lifestyle.

He cited 'ask' becoming 'aks' as an example of metathesis.

He decided to have a sex change.

He decided to undergo a sex change in pursuit of what he truly wanted.

He converted the data into Excel format.

The company decided to change its policy in order to adopt a new strategy.

The government decided to change the course of its economic policy.

The theory of phonetic shift is an important part of linguistics.

He decided to undergo sex change surgery.