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SHOULD - OUGHT TO, HAD BETTER - Coggle Diagram
SHOULD - OUGHT TO
Main uses
Obligation
Advice or recommendation
"I (don't) think..." / "Do you think..."
SHOULD
Outside authority recommendation
Advice with "I"
Responsability/duty (mild obligations)
OUGHT TO
Rules and laws
SHOULD
Probability
Present or future
Not right or what we expect
Obvious things we expect to happen
Subjective prediction
Favourable events
In the negative: SHOULDN'T
SHOULD/OUGHT TO + HAVE + PAST PARTICIPLE
Expectations
Regret or criticism about the past
In questions
SHOULD
Prefered
Offers / request confirmation or advice
OUGHT TO
Formal
Other considerations
INDIRECT SPEECH
No change in time
HAD BETTER
Uses
Advisable/sencible to do sth
Urgency in demands and threats