Why am I so dumbfounded by analogies between phrases and synonyms? What’s a question I occasionally came up with, and I wonder whether they both are grammatically correct or meaning the same? What my main concern is that if they are interchangeable.

My sister has read a

1. few Czech novels but I have also. French is fairly complicated and

2. so is Cezch.

Please help me if you find my words choppy or grammatically incorrect.