6. Contrastive. They express either contrastive words or events in respect of what has happened, such as rather, alternatively, alternatively, worse of all, ,instead, then, on the contrary, in contrast, however and nevertheless.

Even though different linguists have different definition of the logical connectors, it is the fact that they have something in common in the aspect of semantics. Here in this research the first kind of classification is focused, that is, four types of logical connectors: additive, adversative, causal and temporal.

2.2 Error Analysis

Error Analysis (EA) is the first approach to the study of SLA which includes an internal focus on learners’ creative ability to construct language. It is based on the description and analysis of actual learner errors in L2, rather than on idealized linguistic structures attributed to native speakers of L1 and L2.