Write a formal singular command in spanish with the verb hacer.

Tienes que hacer la comida para antes que llegen los invitados.

In Spanish:

Con el verbo Hacer y con los pronombres Yo, Tú y Él (en forma singular) queda de la siguiente forma:  

-With the verb Make and with the pronouns I, You and Him (in a singular way) it is as follows:  -

Yo hago (1era persona singular)  

Él hace (2da persona singular)

Tú haces (3ra persona singular)  

En forma plural (Nosotros, Vosotros y Ellos) queda asi:  

Nosotros hacemos (plural 1ra persona)

Vosotros hacemos (plural 2da persona)

Ellos hacen (plural 3ra persona)  

In english:

With the verb Make and with the pronouns I, You and Him (in a singular way) it is as follows:  

I do (1st singular person)

He does (2nd person singular)

You do (3rd person singular)

In a plural way (We, You and They) it looks like this:

We do (plural 1st person)

We do (plural 2nd person)

They do (plural 3rd person)

James, haz la tarea ahora mismo

Explanation: The verb "do" can be translated to the verb "hacer"

Do it means "haz esto" or "hazlo"

Do not do it means "no lo hagas" or "no hagas esto"

A singular command would be something like an order, for example:

"James, do the homework right now"

That can be translated to:

"James, haz la tarea ahora mismo"

Where the conjugation is for the verbal person "tu", like "tu haz.."

In some countries like Argentina or Uruguay, is more common to use the "vos"

In this case, the conjugation would be:

"james, hacé la tarea ahora mismo"