Present Perfect Tense Comprehensive Study Guide

Course Header and Administrative Details

• Course and Institutional Identifiers:
  • Class Code / Room: 305
  • Institutional Identifier: USCG
  • Section Identifier: 514
  • Dates Noted: September 14, 2023 (recorded as Septonac 14th/202 and September 14 9 26)

Overview and Functions of Present Perfect Tense

• Primary Definition:

  • The Present Perfect tense is used to talk about actions or conditions that connect the past up to the present moment.

• Function 1: Actions Starting in the Past and Continuing to the Present:

  • Used for an action or situation that began in the past and persists up to the present.
  • Examples:
    • "we have practiced Soccer"
    • "We have studied highschool 1 Since 2020"

• Function 2: Something Just Happened (Recent Events):

  • Used to indicate that an action took place immediately before the present time.
  • Examples:
    • "They've Just gone home."
    • "Ouch I've just cut my finger."

• Function 3: Unspecified Time / Focus on Action:

  • Used to talk about an action when not knowing or specifying the exact time it happened.
  • The focus is placed strictly on the action itself, not on the time of occurrence.
  • Example:
    • "I have visited my grandma many times this month."

• Function 4: Our Life Experiences:

  • Used to express overall life experiences accumulated up to the present.
  • Example:
    • "I have eaten charales and chapulines"

Grammatical Components and Verb Forms

• Auxiliary Verb Selection:

  • has: Used with third-person singular subjects (She, He, It).
  • have: Used with first-person, second-person, and plural subjects (I, you, we, they).

• Past Participle Conjugation:

  • The main verb must always be in its Past Participle form.
  • Irregular Verb Examples:
    • Base Verb: Eat | Past Simple: ate | Past Participle: Eaten
    • Base Verb: Go | Past Simple: went | Past Participle: Gone

Sentence Structures

• Affirmative Sentence Formula:

  • $\text{Subject} + \text{Auxiliary (have/has)} + \text{Verb}_{\text{Past Participle}} + \text{Complement}$

• Negative Sentence Formula:

  • $\text{Subject} + \text{Auxiliary} + \text{not (has not / hasn't / have not / haven't)} + \text{Verb}_{\text{Past Participle}} + \text{Complement}$
  • Example: "She has not (Hasn't) / have not (haven't) Gone to the beach a lot of times this year."

Interrogative Structures and Short Answers

• Yes/No Short Answers:
  • Affirmative Short Answer Formula:
    • $\text{Yes}, \text{Subject} + \text{Auxiliary}$
    • Example: "Yes, she has"
  • Negative Short Answer Formula:
    • $\text{No}, \text{Subject} + \text{Auxiliary} + \text{not}$
    • Example: "No, she hasn't"

Information Questions

• Wh- Question Words:
  • Information questions are formed using question words in front of the auxiliary structure.
  • List of question words:
    • who
    • where
    • what
    • when
    • why
    • which
    • how
    • how much
    • whom
    • whose|

Practice Exercises and Applied Examples

• Sentence Transformations and Practice Items:
  • Item 1 (Buy): "We (buy) have bought a new lamp."
  • Item 2 (Not Plan): "We (Not Plan) have not planned [planced] our holiday yet."
  • Item 3 (Be / You - Where): "where (be/you) have you been"
  • Item 4 (Write): "He (write) has written Five letters."
  • Item 5 (Not / See): "She (Not/see) has not seen him for a long time."
  • Item 6 (Be / You - School / Jerry): "(be/you) Jerry / been at school?"
  • Item 7 (Not / Start - School): "School (not/start) has not started yet."
  • Item 8 (Speak / He): "Speak / he - has been speak to his boss"
  • Item 9 (Have Not - Short Response): "No, he (have not) haven't had the time"