Structure 1: THERE + TO BE ... MISSING
Ex.: There are some TANF forms missing.
>> Há alguns formulários do TANF faltando
Structure 2: THERE + TO BE (NEGATIVE SENTENCE)
Ex.: There weren't any TANF forms in his folder.
>> Não havia nenhum formulário do TANF em sua pasta.
Structure 3: TO HAVE... TO GO
>> It is used when we want to say that something is required / missing in order to complete or finish an activity.
EX.: You still have some forms to go before you obtain the benefits.
>> Ainda faltam alguns formulários antes de você obter os benefícios.
We are missing the TANF forms.
>> Demos por falta os formulários do TANF.
The TANF forms are missing.
>> Os formulários do TANF estão faltando.
By the way: TANF = Temporary Assistance for Needy Families (Assistência Temporária para Famílias Carentes). It is one of the United States of America's federal assistance programs.