I was wondering today, when i came across a few words with stems that i knew and prefix's which i was having trouble identifying, if there is a regular way in which prefix's tend to change when added onto words-
for example say i know the verb fero and come across the verb aufero, which i have not come across before. Is there a way i can recognise that this must be made from ab+fero, rather than ad+fero (without looking the word up) or are these mutations (if thats what you call them) fairly irregular... with, other than attempting a guess from context, looking them up being the only sure way?
that also reminds me- for prepositions with more than one option (e/ex, a/ab etc) is there a regular way of knowing which to use? I have seen it said that generally the first before consonants, and the second before vowels, and sometimes consonants.. but this sometimes... is that also pretty irregular or are there regularities which i can take into account when writing latin myself?
Thanks for any help guys....
for example say i know the verb fero and come across the verb aufero, which i have not come across before. Is there a way i can recognise that this must be made from ab+fero, rather than ad+fero (without looking the word up) or are these mutations (if thats what you call them) fairly irregular... with, other than attempting a guess from context, looking them up being the only sure way?
that also reminds me- for prepositions with more than one option (e/ex, a/ab etc) is there a regular way of knowing which to use? I have seen it said that generally the first before consonants, and the second before vowels, and sometimes consonants.. but this sometimes... is that also pretty irregular or are there regularities which i can take into account when writing latin myself?
Thanks for any help guys....