Negative verb conjugation

The most common negative structure in English is the conjugation of the verb in the negative.
Verbs can be used in the negative by placing 'not' directly after the auxiliary verb in each conjugation.
The combination of the auxiliary verb + not is often contracted in English.
For example: do not = don't, will not = won't, has not = hasn't, etc.

Those contracted forms mainly are used in spoken English and in informal messages. In formal messages like in business and public authority communication they are not used. In spoken English, the not contracted form is used when one wants to emphasise the negation, as in Dutch 'écht niet, écht geen, absoluut niet, absoluut geen!'.
The word 'not' is strongly stressed in those cases: 'I will NOT consider regrading your assignment!'

The word order is: Subject + auxiliary verb + not + main verb (+ objects and extra information)

Examples:

Informal, spoken language Emphatic spoken and formal language
She won't come to the party tomorrow. She will not come to the party tomorrow.
Tom hasn't finished the report. Tom has not finished the report.
We aren't studying Russian this semester. We are not studying Russian this semester.