We are play ball in the yard задать к этому предложению

может playing?

Здесь немного не так сформулировано само это предложение. Если ты употребляешь это предложение в Present Simple ( т.е. обыденное, повторяющееся деянье), то надобно сказать: We play ball in the yard. Если в Present Continuous, то так: We are playing ball in the yard. Но уж точно не так: We are play ball in the yard)))

так как тебе надобно в present counrinios либо simple?

We are playing ball in the yard.

Are we playing ball in the yard?
Who is playing ball in the yard?
Where are we playing ball?
What are we playing in the yard?

Who playing ball in the yard?
Where are we playing ball?
What are we playing in the yard?
We are playing ball in the yard, aren't we?
We are playing ball or car in the yard?