Constructions of these tenses are quite bulky and difficult, so it is easier for a speaker to paraphrase the sentence than to create "indigestible" option.
Ukwakhiwa kwalezi zikhathi impela besiyoba sikhulu futhi esindayo, ngakho isikhulumi bangawabeka ngokuhlukile umusho lula kunalokho ukudala kukho " indigestible."