I believe
What is the opposite of I believe? Here is what we hold, with its meaning and related words.
Phrase — Used to introduce something you think is true but are not certain of, softening a statement so you are not claiming it as fact.
How to use I believe
The word patterns that sound natural to a native speaker.
Neutral. Common as a politeness hedge in speech and email, and as an emphatic opener in speeches and manifestos.