Every sentence in the English language will fit into one of these categories or will be a combination of both. Once you understand the two patterns, you can write any kind of sentence you like without the slightest fear of going astray.
Love is blind.
The cat scratched Sally. John gave his mother flowers. The teacher considered him a good student. Every English sentence contains a basic statement. It may stand alone as one short sentence as in the examples above, or it may be buried inside a longer sentence.