All phrases

I was extremely unhappy or depressed.

Expressing sincere and heartfelt gratitude.

Suggesting further investigation of a topic.

Apologizing for poor communication.

Your input and effort made a notable difference.

A formal and very polite way to request help.

Politely requesting an honest, possibly critical, opinion.

Expressing difficulty in comprehension.

I felt a sudden sharp feeling of guilt.

Expressing a high degree of gratitude.

Informal suggestion for collaboration.

Expressing remorse for causing hurt feelings.

You managed a difficult situation with skill and confidence.

A polite way to make a request, leaving room for refusal.

Inviting an opinion in a group setting.

Verifying understanding before proceeding.

I'm very excited.

Expressing gratitude for an unexpectedly large or kind gift or act.

Suggesting a collaborative consideration of something.

Your analysis is very deep and perceptive.

A formal and polite request expressing indebtedness.

Asking about any concerns or doubts.

Summarizing and confirming understanding.

I'm feeling intense happiness and well-being.