I'm at a loss for words.
B2I'm so surprised or shocked that I can't speak.
I think you should...
B2Offering a straightforward suggestion.
By all means...
B2A formal and emphatic expression of agreement or permission.
Don't give up!
B2Encouragement to persevere despite challenges.
I'm ever so grateful.
B2Expressing very strong gratitude.
If you ask me...
B2Giving an opinion, slightly informal.
So, to summarise...
B2Summarising to check for understanding.
I'm brimming with excitement.
B2I'm very excited.
Wouldn't it be better to...
B2Suggesting a superior alternative.
Fantastic work!
B2Expressing strong approval of completed work.
Your kindness is much appreciated.
B2Expressing formal gratitude for a kind act.
I have a feeling that...
B2Giving an opinion based on intuition.
I'm having trouble understanding...
B2Expressing difficulty in comprehension.
I'm consumed by guilt.
B2I feel a lot of guilt.
You might want to...
B2Offering a less direct suggestion.
You're doing great!
B2General praise for good performance.
I'm of the opinion that...
B2Giving a formal opinion.
Are you saying that...
B2Seeking confirmation of an interpretation.
I'm in a state of euphoria.
B2I'm feeling intense happiness and well-being.
Consider...
B2Suggesting something for consideration.
That's really impressive.
B2Expressing strong admiration for an accomplishment.
It's my belief that...
B2Giving a strong opinion.
Please clarify this point.
B2Formal request for clarification.
I'm filled with anticipation.
B2I'm excited and looking forward to something.