So to speak / in a manner of speaking

[Alexzive]

Hi,

1) Can I use expressions like these while speaking?:

"in a manner of speaking" or "so to speak"

2) Are they equivalent to " let?s say" or similar?

3) Are there other equivalent expressions?

4) Are the following sentences correct? :

"So to speak, he is a “warranty of quality” on your learning!"
"Let?s say, he is a “warranty of quality” on your learning!"

Thank you !

[Pamela]

Hi alexzive,
Expressions "so to speak" and "in a manner of speaking" are similar. But I don't think that "let's say" is the best substitution for them. No. Let's say means to assume.
So to speak is often met at the end of the sentence. I think your sentences are fine but with different meanings.
Let's wait for our moderators

[Yankee]

Hi Alex

As Pamela said, yes, you can also use the expressions in spoken English AND the expression 'so to speak' is normally at the end of a sentence. I would not place it at the beginning.

A similar expression to 'so to speak' is 'as it were'.

Amy