As the umpteen other comments say, yes: Amsterdam is extremely English friendly.
That said, outside of Amsterdam, some rudimentary Dutch helps a lot, especially if you're using public transport. Also, even just trying will automatically garner you a little respect with the locals, they're a bit sick of people who don't even try. ;)
That said, outside of Amsterdam, some rudimentary Dutch helps a lot, especially if you're using public transport. Also, even just trying will automatically garner you a little respect with the locals, they're a bit sick of people who don't even try. ;)