Can I use both expressions?
There are/I have
A) I have a a lot of things I’d like to ask you.
B) There are a lot of things I’d like to ask you.
Yes, both are OK. Clive
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If the context is worded right, yes; you can use both.
I have a lot of questions in life that I have no answer to.
There are questions in life that I can't answer myself.