谁能告诉我，这段英语有那些语法问题？

Sorry.I'm running.If you have something to talk to me, please wait for a moment......

if 是条件从句，所以后面不可以加句号。

talk to sb 是固定搭配。

wait for a moment 也是固定搭配。

如果替换，可以用hold a second(在口语中）

Sorry，I’m going. If you have something to say to me, Please wait for a moment....

也可以说，wait a minute，I'm runnning out of time,

Sorry.I'm running.If you have something to talk with me.Please wait for a moment

同上

短语用法不熟 have sth to talk with sb 这种就忘了
wait for 这个搭配也忘了

Sorry.I'm running.If you have something -to- talk with me.Please wait -for- a moment......