Level 1 - Talking about the future How use the future tense. Level 1 - Talking about the simple past How to use the simple past. Level 1 - Talking about the continuous present How to use the ...

If’ usually introduces conditional clauses. The same applies to other conditionals such as unless, should and in case which, however, perform other functions in different contexts.

For example, the tense may change between the methods section and the discussion section. The abstract is usually in the past tense due to it showing what has already been studied. Example: “This ...