Have you ever heard about RePoRtinG VerBS? Yes, sure! (In class) ;)
These forms are used to report what others have said, but these verbs can more accurately describe what somebody has said. Depending on the verb chosen to rephrase a sentence, you need to use a different structure, in other words, if you use "ADMIT", you should take into account that this verb can be followed by a Gerund or a THAT Clause.
For example: "I acted inappropriately", he told the police.
He admitted that he had acted inappropriately OR He admitted acting inappropriately.
Therefore, as you can imagine, you must study these reporting verbs and practise a lot. So, if you want to start practising, click here:
1. List of RePoRtinG VerBS (+exercises).
3. autoenglish.org (exerc)