- In my opinion… - I think so because… – I really think that ... – I’m sure that ... – In my opinion … – I disagree that … – I consider it to be absolutely wrong … – I can prove that it is … – It can’t be true/false because … - From my point of view… - As far as I can see, the main issue is … - Let me add that … - I strongly believe (that) … - I agree with the author that… - I disagree with… - On the other hand, … - However…