Explanation of the 4 Previous Topics

    1 . UNIT 1 .-   Past Tense

• Simple past: we use it to express completed actions in the past at a specific time.
• Past Continuous: we use it to talk about actions that were in progress during a period of time in the past.
• Present Perfect: we use it for actions begun in the past and continuing up to now.
• Present Perfect Progressive: we use it to say how long things have been going in up to now.

     2.  UNIT 2 .-  Infinitives and Gerunds

• Infinitive: certain words are followed by an infinitive verb with or without "to".
• gerund:  certain words are follower by an ING-form
• it+be+adjetive+infinitive
• too+adjetives+infinitive
• adjetive+preposition+gerund
• verb+preposition+gerund

     3. UNIT 3 .-  Future Tenses

• Simple Future Tenses: we use it to express intentions and it can be used to express requests.
• Future Continuous Tense: refers to actions that will be in progress, often at a specified time in the future.

     4. UNIT 4 .- Infinitive Complements

• 1-Persuasion Verbs: advise, cause,convince + object + infinitive
• 2-Want Verbs: expect/need + object + infinitive
• 3-Believe Verbs: consider/recognize + object + to BE
• 4-Plan Verbs: arrange + for + object + infinitive
• 5: have/let/make + object + base form