Discuss and learn French: French vocabulary, French grammar, French culture etc.
If you use the expression
ce que j'aime c'est + noun or infinitive
if the noun is plural then i presume you write
ce que j'aime ce sont les romans?????
also can you say
ce que j'aime c'est que nous avons plein de livres ie can this expression be followed equally by que
Yes that is quite correct( both usages) .
In my eyes the correct use of "ce sont" is quite "advanced" :)
1)Would it be acceptable then to write
"ce que j'aime, c'est les romans or ce qui m'enerve c'est les profs
Can I also write" ce que j'adore, c'est les maths". This always confuses me as it is one thing (maths ) but plural, there fore should it be ce sont les maths?
Probably you can use "c'est" followed by a noun in the plural -in an informal way.
Even so I would be tempted to avoid it unless I had actually come across it being used by a French speaker and had got a feel for it.
I don't think you will be criticized for sticking with "ce sont" in those cases but if you do come across the usage you have mentioned than you can start using it yourself .
Native speakers may also be helpful to us here. :)