Spelling and grammar problems with news reader

"Please type the login and password if the feed require authentification." the word "require" should be plural "requires".

Actually it's not plural, it's changing the tense. Sorry I'm a bit of grammar/spelling nerd. Don't ask me what tense it's changing from or to though. I had a look at <!-- m --><a class="postlink" href="http://leo.stcloudstate.edu/grammar/tenses.html">http://leo.stcloudstate.edu/grammar/tenses.html</a><!-- m --> and I think it's present to present progressive, but I'm still not sure - I don't think most English speakers would, it's all learnt by context.