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Chile Rights
Modal Auxiliary Verbs (Present)
The most common auxiliary verbs are "be," "do," and "have", and you may also use these verbs on their own
Other common auxiliaries are "can," "could," "may,"
"might," "must," "ought," "should," "will," and "would."
A verb like these is called a
modal auxiliary and expresses necessity, obligation, or possibility.
Modal auxiliary verbs like ‘can’ and ‘should’ usually occur with main verbs e.g. ‘can pay’, ‘should pay’.
They add meanings like possibility and obligation to the main verb.
The Use of Tenses
The use of tenses in English may be quite complicated, but the structure of English tenses is actually very simple.
The basic structure for a positive sentence is:Subject + auxiliary verb + main verb
The basic structure is:
positive: subject + auxiliary verb + main verb
negative: subject + auxiliary verb + not + main verb
? question: auxiliary verb + subject + main verb
Most Common Auxiliary Verb
SIMPLE do + base verb (except future:
will + base verb)
SIMPLE PERFECT
have + past participle
CONTINUOUS
be + ing
CONTINUOUS PERFECT
have been + ing
Other Auxiliaries
There are various modal auxiliary verbs, many falling into pairs, e.g. can/could, may/might, shall/should, will/would, must, ought to and dare.
The meanings they express are complex and depend upon the context of their use.
The meanings expressed by some modal auxiliary verbs are similar to those expressed by adverbs such as ‘maybe’, ‘certainly’ ‘possibly’ and so on.
Can is an auxiliary verb, a modal auxiliary verb. We use can to:talk about possibility and ability , make requests , ask for or give permission.
Structure of Can
Subject + can + main verb
Could: Requests
We often use could in a question to ask somebody to do something.
The use of
could in this way is fairly polite (formal): Could you tell me where the bank is, please?
May
I may go to New York. (to indicate possibility)
May I help you? (to ask permission)
Human Rights
Modal Auxiliary Verbs (Past)
Could is an auxiliary verb, a modal auxiliary verb.
Could is an auxiliary verb, a modal auxiliary verb.
make requests
Structure of Could
Subject + could + main verb
Use of Could
Could: Past Possibility or Ability
We use could to talk about what was possible in the past,
We use could (positive) and couldn't (negative) for general ability in the past. But when we talk about one special occasion in the past,we use be able to (positive) and couldn't (negative)
New Constitution for Panama
Modal Auxiliary Verbs (Future)
The word will is a modal auxiliary verb and future tenses are sometimes called "modal tenses". The examples are included here for convenience and comparison
Using Modals
To show respect and politeness, most people use modal expressions when making requests.
Transformation Education in Panama
Preposition of Time (at, in, on, etc.)
Prepositions of Time at, in, on:
• at for a precise time.
• in for month, years, centuries and long periods.
• on for days and dates.
Notice the use of the preposition of time at in the following standard expressions: at night
When we say last, next, every, this we do not also use at, in, on.
I went to London last June. (not in last June)
• He's coming back next Tuesday. (not on next Tuesday)
• I go home every Easter. (not at every Easter)
• We'll call you this evening. (not in this evening)