Hi Lupita,
āPut in my noticeā is a phrase people say when they are quitting a job. Basically, you have to put in two weeks notice before you can quit a job. So when we say āPut in my noticeā it is just the shortened version of āI put in my two weeks notice for workā
āFound outā is when you find the answer to something. For example, we oftentimes use this phrase when sometimes the answer was not clear at first. You could use it like this, āI could not find my favorite pair of jeans this morning, but I found out they were in the washing machineā
āI will for sureā is like saying āOkay, I will do thatā. Maybe your friend asked you if you could watch their pet this weekend, you could reply with āI will for sure!ā
āLetās head toā is like saying āOkay, letās go nowā English speakers sometimes say this when we donāt want to be rude and say āCome on, we need to goā. Itās a nicer way of saying we have places to go to.
āI can pull any stringsā is an awkward phrase, I have never used it before. But it means that you can make things happen or work.