"She studies every afternoon."
Translation:Ella estudia todas las tardes.
literally a single letter out.......WRONG I really wish this thing functioned more like a teacher, yknow, pointing out mistakes and working on them, rather than simply marking something wrong with no indicator of what I misspelled. It really feels sometimes like Duolingo is trying very hard to make me hate it utterly
I would report this as it should be accepted. Look at: https://support.duolingo.com/hc/en-us/articles/204728264-How-do-I-report-a-bug- and also: https://support.duolingo.com/hc/en-us/articles/204752064-How-do-I-report-an-issue-with-the-course-
The 's' is not a plural marker, neither in Spanish nor in English. "Studies" is the 3rd-person singular conjugation of "to study". You always say "he/she/it studies", and it has nothing to do with plurality.
Likewise in Spanish you always use "tú estudias" and "él/ella estudia" as part of the conjugation.
This different time usage is briefly discussed in the Notes and Tips, just click on the Question Mark Icon before starting the first Lesson in Routines or click on this link at: https://www.duolingo.com/skill/es/Routines/tips . It says "Me ducho todos los dias", meaning "I shower each day", and "Yo siempre me levanto a las ocho", which means "I always get up at eight.", and "A las once", a section on using this different time usage.