VERBS

If there isn´t an operator in a positive declarative sentence...

• we use the lexical verb

• we introduce the dummy operator "do"

• we can introduce the operators "be" and "have"

• the main verb becomes the operator

Verbs that have the base form are...

• lexical verbs in the simple present tense with the pronouns "I", "YOU", "WE", "THEY"

• lexical verbs in the simple present tense with all personal pronouns

• can, could, will, would, shall, should, may, must

• lexical verbs which follow a modal auxiliary verb

To describe a background situation in the past you use the _ tense

If there is more than one verb in a VERB PHRASE, the final one is the _ verb

Aspect is realized by means of the use of the auxiliaries "be" and _

The combination of the different tenses and aspects results in _ different verb tenses

Of the 3 classes of verbs, _ can act as auxiliaries and as main verbs

The three aspect distinctions in the English language are_

• simple, progressive, non-progressive

• perfective, nonperfective, progressive

• simple, perfective, progressive

• non-simple, non-progressive, mnon-perfective

The four functions of operators include: emphatic function, negative function, interrogative function and_

• short answers

• imperative function

• indicative function

"be going to", "be about to" and the present simple tense are structures used to express

• a past action

• a present intention

• a future state or event