In this lesson we will be looking at different sentences and running them through different tenses.
Past time
Remember to use the past participle when using the simple past.
- Simple Past: Definite
- They gave us too many plates of food.
Use the present perfect (have/has + past participle) to express a state, event, or action at an indefinite time in the past.
- Present Perfect: Indefinite
- Personal computers have become commonplace.
Present time
Remember that the simple present is used to show actions, events, or states that happen habitually or as a general rule.
- Simple Present: In General
- Technology marches on!
The present progressive is used to show actions, events, or states that are in progress at the moment (not finished).
- Present Progressive: Now
- That's the kind of change we're looking for in the biomechanics industry.
Use the present perfect (have/has + past participle) to express a state, event, or action at an indefinite time in the past.
- Present Perfect: From a Time in the past until now
- Professor Tree has worked at the university all his life.
Future time
Use Will to show a future state, action, or event decided on the moment of speaking. Will is used to describe an event in progress at a certain time in the future that is unplanned.
- Future with Will
- Personal will almost certainly be smaller and have much less resemblance to the models we have today.
Use the future perfect to show a state, action, or event that will happen before a certain time in the future.
- Future Perfect: Before a time in the future
- Some are predicting that robots will have become as commonplace as personal computers today.
Exercise
Open the exercise to begin the activity. Follow the instructions in the document.