For anyone,

Could you answer my question?

My quesition is if a sentence; "I heard that her birthday came soon " is correct or not.
I think that it should be "I heard that her birthday was coming soon."

Question

For anyone,

Could you answer my question?

My quesition is if  a sentence; "I heard that her birthday came soon "  is correct or not. 
I think that it should be "I heard that her birthday was coming soon."

Answer

Yep, native speakers would either say:

"I heard that her birthday was coming soon.'

Or, commonly also:

"I heard that her birthday is coming soon.'

"I  heard that her birthday came soon,"-- this would be incorrect as it would imply that magically her birthday arrived sooner than expected. :)