Prepositions are the little words/phrases like "under, into, out of." ειμι is the verb meaning "to be."
Encouragement
Blog: Prepositions and Christology (1 Tim 1:2)
Blog: Christ’s Death and Our Justification (Rom 4:25 and δια)
Blog: What do Prepositions Modify?
Blog: Was Jesus' Body "For" You or "Broken for You? (1 Cor 11:24)
Blog: 3 John 4 and Walking in (the) Truth
Blog: In (ἐν) spirit and truth (John 4:23)
Downloads
Overheads for BBG Grammar, 3rd edition ( Keynote )
Overheads for BBG Grammar, 4th edition ( Keynote | PowerPoint )
Overheads for BBG Workbook, 4th edition ( Keynote | PowerPoint )