Tense

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(Natural language)
(Natural language)
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In the UNLarium framework, the attribute tense is represented by the following hierarchy, where lower levels subsume upper levels:
 
In the UNLarium framework, the attribute tense is represented by the following hierarchy, where lower levels subsume upper levels:
  
{{#tree:id=nl_tense|openlevels=0|root=Tense|
+
{{#tree:id=nl_tense|openlevels=0|root=Tense (TNS)|
 
*absolute tense (ATNS)
 
*absolute tense (ATNS)
 
**present (PRS): in the present
 
**present (PRS): in the present

Revision as of 16:25, 15 January 2010

Tense is a category used in the grammatical description of verbs (along with aspect and mood), referring primarily to the way the grammar marks the time at which the action denoted by the verb took place. It can be broadly classified as:

  • absolute tense: indicates time in relationship to the time of the utterance (i.e. "now").
  • relative tense: in relationship to some other time, other than the time of utterance.


Contents

Natural language

In the UNLarium framework, the attribute tense is represented by the following hierarchy, where lower levels subsume upper levels:

General tenses
General tenses, such as simple past or simple future in English, are indicated by the uppermost level of the corresponding branch.
English
simple past = PAS
simple future = FUT
Relative and absolute-relative tenses are indicated by combining absolute and relative tags through "&"
English:
past perfect (= past of the past): PAS&RPAS
future perfect (= past of the future): FUT&RPAS
French:
passé antérieur (= past of the past): PAS&RPAS
future antérieur (= past of the future): FUT&RPAS
Tense, mood and aspect
In synthetic languages, the distinction between grammatical tense, aspect and mood is fuzzy and at times controversial, because they are often amalgamated in single morpheme:
aorist: PAS&PFC
imperfect (past imperfect): PAS&NPFC
present perfect: PRS&PFC
Simple and compound tenses
The difference between simple and compound forms must be informed only if they represent different alternatives for the same tense. If this is the case, the compound is indicated through the attribute "CPW":
French
passé simple: PAS
passé composé: PAS&CPW

Examples

List of grammatical tenses:

UNL

In UNL, tense is to be represented as attributes indicating the actual time of the event.
The corresponding values for the attribute tense are the following:

The UNL representation should indicate the time rather than the grammatical tense of a form.
There is no simple one-to-one relationship between tense forms and time. In English, for instance, the present (grammatical tense) may be used to represent the future (time)
I’m going home tomorrow = go.@future.@recent (and not go.@present)
@present is used to indicate an action at the present, and not habits, routines and statements
I'm in Frankfurt. = @present
I always come to school by cycle. = no tense information
The sun sets in the Occident. = no tense information
Tense values may be combined.
I'm going home tomorrow = go.@future.@recent
I had been there = @past.@anterior

Examples

List of grammatical tenses:

Software