我准备去野餐用英语怎么说

英语是：I'm going to have a picnic.

句子解释：
be going to 英[bi: ˈgəʊɪŋ tu:] 美[bi ˈɡoɪŋ tu]
[词典] 就要; 要，会，将要; 快要;
[例句]Reading between the lines, it seems neither Cole nor Ledley King will be going to Japan.
言外之意，科尔和莱德利·金两个人似乎都不会去日本了。

picnic 英[ˈpɪknɪk] 美[ˈpɪknɪk]
n. 野餐郊游; 供野餐吃的食品; 猪的肩肉; 轻松的工作;
vi. 去野餐，参加野餐; 野餐式地用餐; 在户外用餐;
vt. 用野餐招待;
[例句]We're going on a picnic tomorrow
我们明天去野餐。

I'm going out for
a picnic.
I am preparing for s picnic.
I intend going out for a picnic.