SIMPLE
- Simple Present ►Expresses an action or condition that regularly or usually exists. It exists now, has existed in the past, and will probably exist in the future.
I work all week.
Steven does his homework every day.
- Simple Past ►Expresses an action or condition that began and ended in the past.
I worked last night.
Steven did his homework yesterday.
- Simple Future ►Expresses an action or condition that will happen some time after the present moment.
I will work hard tomorrow.
I am going to work hard tomorrow.
Steven will do his homework.
Steven is going to do his homework.
PROGRESSIVE / CONTINUOUS
- Present Progressive/Continuous ►Expresses an action or condition that is in progress or that is taking place at the moment of speaking.
I am working on the project.
Steven is doing his homework now.
- Past Progressive/Continuous ►Expresses an action or condition that began, continued for a period of time, and ended in the past.
I was working all night.
Steven was doing his homework when I called.
- Future Progressive/Continuous ►Expresses an action or condition that will begin some time in the future and will continue for a period of time.
I will be working next week.
Steven will be doing his homework during lunch break tomorrow.
PERFECT
- Present Perfect ►Expresses an action or condition that occurred at some unspecified time in the (recent) past and persists in the present.
I have worked hard all my life.
Steven has done his homework.
- Past Perfect ►Expresses an action or condition that was completed in the (distant) past, or one that occurred before another event took place.
I had worked for this company before.
Steven had done his homework before he left.
- Future Perfect ►Expresses an action or condition that will be completed in the future before another future event occurs.
I will have finished my work by the time you get home.
Steven will have done his homework for hours before he goes to bed.
PERFECT PROGRESSIVE / CONTINUOUS
- Present Perfect Progressive/Continuous ►Expresses an action or condition that began in the past and has continued up to the present moment.
I have been working for many years.
Steven has been doing his homework for hours.
- Past Perfect Progressive/Continuous ►Expresses an action or condition that happened over a period of time in the past, or that was in progress until another event occurred.
I had been working hard on the project.
Steven had been doing his homework until you arrived.
- Future Perfect Progressive/Continuous ►Expresses an action or condition that will be in progress before or until another event in the future occurs.
I will have been working here for 12 years this summer.
Steven will have been doing his homework for hours before he goes to bed.