Summary of Key English Tenses and 'Used To'

## Introduction English grammar features several verb tenses and structures that allow us to discuss the present, past, and future with different nuances. In this material, we will cover: the **present continuous used for future plans**, the **simple present**, the **simple past**, the **past continuous**, and the **used to** structure. Each section includes definitions, structures, practical examples, and comparisons to facilitate understanding. > Definition: The *present continuous* is a verb form used for actions in progress and also for pre-arranged future plans. ## Present Continuous for Future Arrangements ### Usage We use the **present continuous** to talk about future arrangements or plans that have already been decided and often include a specific time or place. ### Structure Subject + **am/is/are** + verb-ing ### Examples - I am meeting my friend tomorrow. - She is traveling next week. - We are having a class at 10 a.m. ### Real-world Applications - Bookings: "I am flying to Madrid on Friday." - Schedules: "We are meeting in Room 201 at 2 p.m." > Definition: The *simple present* is used for facts, routines, and general truths. ## Simple present ### Use We use it to talk about habits, daily routines, scientific facts, and permanent situations. ### Structure Subject + base verb (add -s for he/she/it) ### Examples - I study every day. - She works in an office. - Water boils at 100 degrees. ### When to use it - Daily routines: I wake up at 7. - General facts: The Earth moves around the Sun. - Permanent situations: He lives in Puebla. ## Comparison: Present Continuous (Future) vs. Simple Present | Function | Present Continuous (Future) | Simple Present | |---|---:|---| | Type of Action | Arranged plans / Already decided | Routines, facts, general truths | | Structure | Subject + am/is/are + verb-ing | Subject + base verb (he/she/it + -s) | | Example | We are meeting at 6 p.m. | The train leaves at 9 a.m. (fixed schedule) | Did you know that in English, some references to fixed schedules (like timetables) are often used in the *simple present* for the future: "The plane departs at 8:00"? ## Simple past vs Past continuous Definition: The *simple past* describes actions completed at a specific time in the past. The *past continuous* describes actions that were in progress at a particular moment in the past. ### Simple past **Structure:** Subject + past tense verb **Usage:** Completed actions; sequential actions **Examples:** - I finished my homework. - She went to the store. - I arrived home, ate dinner, and went to bed. ### Past continuous **Structure:** Subject + **was/were** + verb-ing **Usage:** Actions in progress at a specific time in the past, actions interrupted by another past action **Examples:** - I was reading when the phone rang. - They were studying all night. ### Quick Comparison | Aspect | Simple past | Past continuous | |---|---:|---| | Focus | Completed action | Action in progress | | Common markers | yesterday, last week | while, when (for interruption) | | Example | She called me. | She was calling me when I arrived. | Fun fact: The *past continuous* is frequently used to provide context or describe the background of a story in past narratives. ## Used to: Past Habits and Situations > Definition: "Used to" is employed to talk about actions, habits, or situations that were true in the past but are no longer true. ### Affirmative Structure Subject + **used to** + base verb ### Affirmative Examples - I used to play soccer every weekend. - She used to live in Puebla. - We used to watch TV at night. ### Usage for States - I used to be shy. - There used to be a park here. ### Negative Form **Structure:** Subject + did not (didn't) + **use to** + base verb **Examples:** - I didn't use to like coffee. - He didn't use to study a lot. ### Interrogative Form **Structure:** Did + subject + **use to** + base verb **Examples:** - Did you use to go to that school?