How can I finetune XLM-R for neural machine translation between the same language(Catalan to Catalan-with different grammar structure))?

Question

Can I fine-tune XLM-R to do something similar to https://www.guru99.com/seq2seq-model.html (encoder-decoder architecture or any other way that perform good in small dataset - around 1000) For example: Input: He sells food(in Catalan) Output: Food he sells(in Catalan)