1. PRESENT
1.1. SIMPLE
1.1.1. AFFIRMATIVE Ex: I have a tomato
1.1.2. NEGATIVE Ex: I don't have a tomato
1.1.3. QUESTION Ex: Have I a tomato?
1.2. CONTINUOS
1.2.1. AFFIRMATIVE Ex: I am running
1.2.2. NEGATIVE Ex: I'm not running
1.2.3. QUESTION Ex: Am I running?
2. FUTURE
2.1. WILL
2.1.1. (PREDICTION)
2.1.2. Ex: I will travel around the world
2.2. GOING TO
2.2.1. (PLAN)
2.2.2. Ex: I am going to study Batchillerat
2.3. PRESENT CONTINUOS
2.3.1. (ARRANGEMENT)
2.3.2. Ex: Tomorrow I am doing an exam
3. MODALS
3.1. POSSIBILITY
3.2. ABILITY
3.3. PERMISSION
4. PAST
4.1. PERFECT
4.1.1. AFFIRMATIVE Ex: I had eaten a tomato
4.1.2. NEGATIVE Ex: I hadn't eaten a tomato
4.1.3. QUESTION Ex: Had I spoken
4.2. CONTINOUS
4.2.1. AFFIRMATIVE Ex: You were eating a tomato
4.2.2. NEGATIVE Ex: You weren't eating a tomato
4.2.3. QUESTION Ex: Were you eating a tomato?
4.3. SIMPLE
4.3.1. AFFIRMATIVE Ex: I ate a tomato
4.3.2. NEGATIVE Ex: I didn't eat a tomato
4.3.3. QUESTION Ex: Did you eat a tomato?