Question

i dug a shallow grave in the garden (make it negative)​

Answer 1

Answer:

I didn't dug a shallow grave in the garden

Explanation:

Answer 2

i didn't dig a shallow grave in the garden .

DID-DO-DOES ( LEASE VERB )

this are used when there is an absence of modal verb or helping verb .

and Did + Dig = Dug

and DID+NOT = DIDN'T ( NEGETIVE LEASE VERB )

SO I THINK THESE MAY HELP U FURTHER