The introduction is usually in present tense due to the fact that you are presenting facts and background information on your research topic. By having this information in present tense, you are ...

The immediate future is used to say what you are going to do or what is going to happen, eg: voy a hacer mis deberes ... In conversation, the present tense can sometimes be used to discuss ...

The immediate future is used to say what you are going to do or what is going to happen, eg: voy a hacer mis deberes ... In conversation, the present tense can sometimes be used to discuss ...