The subject of a sentence always comes before the verb. (Except in questions where the auxiliary is first and also 'Not only did she work a full time job, she studied in her free time'. Need to explain that the auxiliary verb is not really a verb.
Don’t use contractions in formal writing. Possible exception: a quote from a witness in a police report, 'She said 'I've gone and done it'.
We form the Simple Past by adding -ed after the verb stem. For instance, “watch” becomes “watched”. There are irregular verbs, eg. to be> was/were Have > had, not have.
The Present Simple is used to refer to states or regular or habitual actions. Telling a joke 'A man walks into a bar'.. 'The cattle are lowing, the baby awakes... no crying he makes'. 'awakes is a moment in the story'.