in a sence, it is past tence...
hey that rhymes!!!
Empirical anything is what is observed. Theoretical is a calculation of what things ought to be.
must is a modal that implies a duty or obligation which is not self imposed but by external rule or duty. ought tois a moral or self imposed obligation or duty.
PS7 has more features then 6. but honestly they are so old you ought to just get Photoshop CS4 or 5
I think that to get the mortgage loans from banks you ought to have a great motivation. Nevertheless, once I have got a financial loan, because I was willing to buy a car.
"18 atomic units" is a (semi) sensible mass (it ought to be "18 atomic MASS units", but that's a minor quibble). "18 atomic gram" is just nonsense. That's the biggest difference.
It is the difference between sand running out of an hour glass and determining what time it is by how much sand is left. Radioactive decay happens at a steady rate. If you can determine how much of that radioactive isotope ought to have been in a sample at the start and you can measure how much is left, you can tell how much time has passed.
The past tense of ought is ought.
Psychological egoism is define as everyone always act selfishly. (Factual Theory) Ethical egoism is define as everyone always OUGHT to act selfishly. (Evaluative Theory)
Ought is already acceptable in past tense. 'Ought to be' is present tense, while 'Ought to have been' or 'Ought to have' is past tense.
Triple ...
A sentence with the word ought in it is: "I ought to be a superstar someday!"
In common usage, the difference is one of specificity.SHOULD = A nonspecific suggestionFor example:You should get your hair cut.In this example, no restrictions (such as the style of cut) are imposed on the suggestion.OUGHT = A specific suggestion (usually a "best practice")For example:You ought to wear black to the funeral.In this example, the suggestion is meant to express what is appropriate.The way we speak, though, is not always the way we shouldspeak. For example, "should not" (or "shouldn't") is not a correct phrase, as the use of "not" is imposing a restriction. We say, "You should get a haircut, but you shouldn't get a mullet." The correct sentence is, "You should get a haircut, but you ought not get a mullet." You probably won't hear that very often.