"I cannot love you, sorry."
Translation:Ik kan niet van je houden, sorry.
'kan' is here an auxiliary verb, in that case the main verb is put in the end of the sentence. If you want more examples you can go here: http://www.ict.teno.be/haasrode/neandertaal/NedLer08.html
Houden is the infinitive (unconjugated) form, when there is a modal verb like "kan" you have to use the infinitive for the 2nd verb in the sentence. So "Ik eet", but "Ik kan eten".