It is essential that web translators preserve correctness of grammar.
English > Spanish > Norwegian > Greek > English
It is important that translators from grammatical correctness web.
Technically, it's still grammatically correct if you treat "web" as a verb!
Let's try another one...
Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you don't know how to disable them then just continue on.
English > Czech > Swedish > Arabic > Serbian > English
Disable anti-virus software and applications protušpijunskih usually right-click on the icon in the taskbar. May represent the interference in our tools. If you do not know how to disable them, and then continue.
Still not that exciting. Let's try one more that's a bit more unusual...
Please screw the screw into the hole labeled B, drill the large screw into hole D using a drill, and hammer the hammer shaped extension on the left until it is flat.
English > Catalan (whatever that is) > German > Galician > Russian > English
Please screw holes in the "B", large hole in the screw holes with D, hammer and hammer-shaped extension on the left side until it is flat.
That's a bit better