For and since

Elaborated by L.E.L.I. Karen Aylin Chávez Cano and José Eduardo Lartundo Peña
Sentences adapted from: Mitchell, H. & Marileni, M. (2013). Pioneer Pre-intermediate A2 American Edition. MM Publications. / Murphy R., Smalzer R. W. (2017). Basic grammar in Use Student’s Book with Answers and Interactive eBook: Self-study Reference and Practice for Students of American English. Cambridge University Press.