I'll give you ten minutes to prepare your answer.
((略式))答えの準備に10分あげましょう
I'll give you that.
((略式))それは認めよう
I'll give you whatever help I can.
できる援助は何でもしましょう
I'll go first, OK?
先に行くけどいいかい
I'll go home after I finish this.
これを終えてから帰ろう
I'll go tomorrow.
あした行きます
I'll [We'll] have ....
(レストランで注文の際に)…にします
I'll have a double, please.
(酒場で)ダブルにしよう
I'll have a half of lager.
ラガーを半パイントいただきます
I'll have to have a think (about it) before I decide.
決断を下す前に考えなければ