"Nous voulions tant un enfant !"

Translation: We wanted a child so much!

[mdprasad]

The translation is awkward. "We so wanted a child" or We really wanted a child" sounds much better.

[KarenSpark5]

'We wanted a child so much' would be fine.

[Dra178835]

Could you say 'nous voulions un enfant tant'?

[--Roody--]

No, and this points out the shortcoming of KarenSpark's translation.