Presentation on theme: "What are auxiliary verbs?"— Presentation transcript:
1What are auxiliary verbs? Grammar ToolkitAuxiliary verbsWhat are auxiliary verbs?
2Grammar ToolkitAuxiliary verbsA non-finite verb can become a finite verb with the help of an auxiliary or “helping” verb. Auxiliary verbs give the resulting verb its tense. Let’s start with the present participle looking.The auxiliary verb is makes the verb complete and gives it a tense (present tense.)MickeyislookingThe complete verb can now have a subject.By itself, it doesn’t have a tense and can’t have a subject.The complete finite verb becomes is looking.
3have has do does did be am is are was were being been Grammar ToolkitAuxiliary verbsAuxiliary verbs are forms of the verbs have, do and be. Choose an auxiliary verb for each non-finite verb. What tense does the complete verb get?have has do does did be am is are was were being beenI ______ cleaning.She _______sure.We to go.Yuki and Sanj coming.I know.ampresentwaspasthavepresentarepresentdidpast
4can could may might must shall should will would Grammar ToolkitAuxiliary verbsModal verbs are a type of auxiliary verb. They help a non-finite verb express possibility, obligation or permission. Choose an auxiliary verb for each non-finite verb. What tense does the complete verb get?can could may might must shall should will wouldwe dance?You eat.Mia run fast.Jack go.They know.Shallfuturemustpresentcanpresentwillfuturemightpresent
5A main verb plus one or more auxiliary verbs makes a verb phrase. Grammar ToolkitAuxiliary verbsA main verb plus one or more auxiliary verbs makes a verb phrase.mayhavebeenplayedVerb phrases can become quite long. What verb phrases can you make with these auxiliary verbs?been is will was have hadCarlos playing.Carlos playing.Carlos playing.iswashad beenwill have been
6Many negative verb phrases are also written as contractions. Grammar ToolkitAuxiliary verbsMany subjects and their auxiliary verbs are written as contractions. Contractions are words or phrases with an apostrophe to show missing letters.I’m home. = I am home. Cristina’s here. = Cristina is here.Many negative verb phrases are also written as contractions.She hasn’t sold it. = She has not sold it. He didn’t arrive. = He did not arrive.
7subject + auxiliary verb Grammar ToolkitAuxiliary verbsDo you know what these contractions mean?subject + auxiliary verbcontractionI haveyou areI hadit’sthey’reI’veyou’reI’dit isthey arecontractionnegative verb phrasecan’tdon’tshouldn’twill nothad notcannotdo notshould notwon’thadn’t
8Verbs have different forms. Grammar ToolkitAuxiliary verbsVerbs have different forms.A finite verb is a verb with a subject and tense. A non-finite verb doesn’t have a subject or tense and cannot be the main verb in a sentence.Non-finite verbs can become finite verbs with the help of auxiliary verbs (forms of the verbs have, do and be), including modal verbs.Adding one or more auxiliary verbs to a main verb forms a verb phrase.Many subjects and their auxiliary verbs are written as contractions (e.g. she’d = she had), as are negative verb phrases (e.g. don’t = do not).