Hi I have some questions about the grammar structure of the below sentence. I'd really appreciate it if you could help me to find the answers. The sentence: Retraining an employee means that companies can save a lot of money recruiting and training new ones First, is the sentence grammatically okay? (in my view, only when is '' to'' or ''for'' added between the noun ''money'' and the verb '' recruit'', the sentence makes sense. Second, are these two sentences identical? 1- Retraining an employee means that companies can save a lot of money FOR recruitING and trainING new ones 2- Retraining an employee means that companies can save a lot of money TO recruite and train new ones