Sentence: It is clear from the graph that developing countries invest more and more every year till 2012 while developed countries have some fluctuation in investment: it is slighty rised from 2006 to 2008, then it slightly decreased after what it begins rapidly increased till 2011 and then rapidy went down till 2013.

Error: invest
Error type: Tense semantics

Error: invest
Error type: Tense semantics