That which one is morally or legally obligated to do.
The state of being at work and responsible for or doing a particular task.
A tax placed on imports or exports; a tariff.
The efficiency of an engine, especially a steam pumping engine, as measured by work done by a certain quantity of fuel; usually, the number of pounds of water lifted one foot by one bushel of coal (94 lbs. old standard), or by 1 cwt. (112 lbs., England, or 100 lbs., United States).
Something that ought to be the case as opposed to already being the case.
Will be likely to (become or do something); indicates a degree of possibility or probability that the stated thing will happen or be true in the future.
Indicates that something is expected to have happened or to be the case now.
Used to express a conditional outcome.
With verbs such as 'see' or 'hear', usually in the second person, used to point out something remarkable in either a good or bad way.
To make a statement of what ought to be true, as opposed to reality.
Used to impart a tentative, conjectural or polite nuance.
Used to express what the speaker would do in another person's situation, as a means of giving a suggestion or recommendation.
Simple past tense of shall.
In questions, asks what is correct, proper, desirable, etc.
Used to issue an instruction (traditionally seen as carrying less force of authority than alternatives such as 'shall' or 'must').
Used to give advice or opinion that an action is, or would have been, beneficial or desirable.
Used to form a variant of the present subjunctive, expressing a state or action that is hypothetical, potential, mandated, etc.