أ--- حرف العطف "و" يدل على المقارنة والمساواة، فمن يقول: "ما شاء الله وشئت"، فإنه يقرن مشيئة الله بمشيئة العبد، ويجعلهما على قدم المساواة. أما حرف العطف "ثم" فيدل على التبعية والترتيب، فمن يقول: "ما شاء الله ثم شئت"، فإنه يبيّن أن مشيئة العبد تابعة لمشيئة الله تعالى وجارية على إثرها. قال الله تعالى في كتابه العزيز: {وَمَا تَشَاءُونَ إِلَّا أَن يَشَاءَ اللَّهُ} [الإنسان: 30].

A--- The conjunction "and" suggests comparison and equality. So, one who says: "What Allah and you willed", compares the Will of Allah and the will If the slave, and puts them on equal terms. Whereas, he conjunction "then" suggests subordination and following. So, one who says: "What Allah then you willed" , he declares that the will of the slave is subordinate to and follow the Will of Allah Almighty. Almighty Allah says in His Glorious Qur'an, {But you cannot will, unless Allah wills}. AlInsan, 30)

I can't tell what "the rest of the aforementioned expressions" refers to, since I haven't seen any earlier text in this conversation. Could you paste the sentence or passage you'd like translated into Arabic?

And so are the rest of the aforementioned expressions!