She repeated that what is a crucial issue on both sides of the European Union debate - whether curbing immigration into Britain will be prioritised over preferential access to the bloc's single market - was not a "binary choice" and said that the country would not be keeping "bits" of European Union membership.
"People often talk.as if somehow we're leaving the European Union but we want to keep bits of membership of the EU".
"We are leaving. We are coming out".
"It's about recognising that there is a role for government but government needs to ensure that it is acting as effectively as possible in those areas where it should be taking action and one of the areas that".
May replied, saying she "wants the best possible deal for trading with and operating within the single European market", but also said that leaving the EU doesn't mean retaining bits of membership and that she will be looking at alternative trade deals.
May said her "thinking on this isn't muddled at all" and accused the previous administration of not preparing a strategy in case of Brexit.
"We will have control of our borders, control of our laws, but we still want the best possible deal for United Kingdom companies to trade with and operate within the European Union and also European companies to trade with and operate within the UK".
Theresa May has said that Donald Trump's lewd remarks about women were "unacceptable", ahead of meeting with him this spring.
Mrs May told Sky News's Ridge on Sunday: "Our thinking on this isn't muddled at all".
The PM told Sophy Ridge she does not see the decision between trade and immigration during Brexit talks "as a binary issue".
"We voted to stay in the European Union, we were told voting "no" was the only way to stay in the European Union and we now face being taken out of it".
Prime Minister Theresa May insisted on Sunday that Britain will have "control over our borders" after Brexit, suggesting she would be prepared to quit Europe's trading zone to achieve it.
"Often people talk in terms of, somehow we're leaving the European Union but we still want to keep bits of membership of the European Union", she said. "This is what people were voting for on 23 June".
Brexit will swiftly return to the top of the agenda as a Supreme Court ruling is looming on the rules Mrs May must meet to invoke Article 50 and begin official departure talks - something she plans to do before the end of March.
No 10 sources said Mrs May planned to use the interview to focus on her plans for social reform and her plans to create a "country that works for everyone" by ending "burning injustices" facing Britons.