How do the tenses and aspects in English correspond temporally to one another?
Solution 1:
A visualization of what we mean in English by the various tenses:
Solution 2:
For the sake of presenting the information in another way:
I eat
habitually; in general.
- “I eat venison occasionally.”
as a command
- “Now, we eat!”
I am eating
at this point; at this point, continuously; at a point in the future.
“I am eating these leftovers. Would you like some?”
“I am eating lunch with John on Thursday.”
I ate
at a point in the past.
“I ate squid once.”
“I ate lunch early today.”
I was eating
at a point in the past, continuously.
- “I was eating my dinner, when the phone rang.”
I have eaten
at a point in the past; in the past in general.
- “I have eaten many different kinds of sushi.”
I have been eating
up to and including now, continuously. = I was and am eating.
- “I have been eating the bread that's on the counter, not knowing it's mouldy.”
I had eaten
before a point in the past.
- “I had eaten barbecue before, but this steak was better than any I'd ever tasted.”
I had been eating
up to and including a point in the past, continuously.
“I had been eating breakfast in bed, till I started seeing ants in my room.”
“I had already been eating for fifteen minutes by the time she showed up.”
I will eat
at a point in the future; in the future in general.
“I will eat an apple a day from now on.”
“I will eat dinner with you tomorrow if you want.”
I will be eating
up to and including a point in the future, continuously.
- “I will be eating only a little bit of this cake. You can have the rest.”
I will have eaten
before a point in the future.
- “I will have eaten by the time you get out of work, so we can't eat together.”
I will have been eating
up to and including a point in the future, continuously.
- “I will have been eating a vegetarian diet for twenty years next month.”
Solution 3:
My guess is that you read a table something like this:
-
Present Simple (I eat)
- habitually; in general.
- as a command
-
Present Continuous (I am eating
- at this point
- at this point, continuously
- at a point in the future.
-
Past Simple (I ate)
- at a point in the past.
-
Past Continuous (I was eating)
- at a point in the past continuously
- etc...
and found it confusing. Your first instinct (and it's a good one!) was to draw a diagram to make sense of it. But the diagram is just as confusing as the table.
The problem is that our brains just don't work that way. If you ask a typical native speaker to list all the situations where he uses a particular tense, mood & aspect, he'll find it impossible. But if you show him a sentence and ask him to choose the correct tense, mood & aspect, he'll have no trouble. In other words, our mental table of tenses and moods looks more like this:
-
habitually, generally
- I eat cheese.
-
habitually, in the past
- I ate cheese.
- I would eat cheese.
-
making a request
- Please eat cheese.
- Could you eat cheese?
- Would you mind eating cheese?
- I was wondering whether you would eat some cheese?
-
imaginary situation in the future
- If I eat cheese, I will have cheese in my belly.
-
imaginary situations in the past
- I wish I had eaten cheese.
- etc.
So if you want to make a diagram that is useful to learners of English, you need to take the same approach. That's a tall order! I don't even know that it's possible. I'd love to know about any past attempts.