Here's a useful way of improving your "replying" skills without revealing your woeful lack of grammar.
Suppose you managed to understand what your companion/questioner is saying .. often you can just answer with a list ...and lists don't need much/any grammar . Ha ! Here's Q, who just keeps on asking bloody questions, and K-for-Ken who is struggling to come up with answers ... so he falls back on the good old "listing things" method ... which works fine, but he runs out of steam eventually ... make sure you've got lots of words in the tank ..
Q ..... Beth i 'neud, Ken ?
K ..... Dim byd yn wir, darn o siopa, dim byd arall ....
Q...... Grêt ! S'mae ?
K...... Wel nawr, digalon, llanast, diflas, oer, cymhleth,trist,swnllyd,poenus, fel arfer.
Q..... Wendy ?
K..... wel, er,, hapus, doniol, prysur, lwmpog, oer, ffôl, seimlyd, gwallgof...
Q.... Y tŷ ?
K.... Oren, gwlyb, mws, syth ,hen, costus, erchyll ...
Q.... Harri bach ?
K ....Harri bach ... er, ie, oer, cymhleth, digalon,trist, swnllyd, poenus,hapus, oren, doniol,
prysur, lwmpog, gwallgof, hen, sori, dim hen, seimlyd, wel, weithiau, a, gwlyb, mws,
syth, costus, erchyll, diflas, ... dim syniad yn wir, paid a mynd.... drwg gen i ...
diflannodd K i lawr y heol, yn rhedeg ....
I'm sure that the bothersome Q never realised that Ken was using this wonderful coping strategy to such good effect.
Having improved your conversational; repertoire by 3.7 %, it's music time, with a song that I suspect nobody in the Universe knows the words to for a variety of reasons, Nith y Gwlithlaw by the trailblazing " Fflaps" ....