Lately, EUR/GBP's price action might have seemed erratic. However, if we look at the weekly chart, we can see that it could be developing a classic head and shoulders.EUR/GBP Weekly Chart(click to enlarge)Bulls Stalling:- The weekly chart shows that EUR/GBP has been rallying since mid-2015.- Price really took off in 2016, but has stalled in 2017 so far. - In fact, we see a possible head and shoulders pattern developing. Critical Support Around 0.83:- The weekly chart shows that if price comes down to 0.83, bears will be challenged by key support factors.- The first is the projected neckline.- The more important support factor will be a rising trendline. - A break below 0.83 would likely clear both support and open up 0.80.