Is it imply or infer?
Many people readily mix up these terms.
Both of these are verbs (doing words), but mean different things. Here’s what they mean.
This means to ‘hint at’ or ‘suggest’.
So, someone might ‘imply’ that your grammar is poor (by gently pointing out mistakes, but not actually saying it!).
This means to ‘deduce’ or ‘draw a conclusion from what was said’.
If someone sends your e-mail back for corrections, you might ‘infer’ (or conclude) from that action that your English needed reviewing, before that e-mail could be sent.