Question

correct the sentence: I saw a strange dream last night.

Answer 1

As far as informal language is concerned , I think the sentence is fine as it is.

However if you want to sound formal and stick to the so called "Reported Speech" rules, then you'd better write or say:

- My daughter said that she had seen a strange dream the (night before/previous night)

Pretty much what has already been suggested! But, if only one article can be used in place of the incorrect one, the following sentence would swing better:

- My daughter had a strange dream last night.

‘had’ replaces ‘saw’ in the above sentence.

Hope it helps!

Answer 2

Answer:

I had seen a strange dream.

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