General Forum
Start a New Topic 
Any rule for verb form after " come and speak to us"

I was working through gerunds and infinitives with a class and the following gap fill sentence was given; (gaps were (give) (come) (talk)):
"We really do appreciate your giving (give) up your valuable time to come (come) and talk (talk) to us".

I can see rules in the book's gerunds and infinitives grammar sections that indicate a gerund follows the verb "appreciate" hence ..."appreciate your giving up..."
and that the infinitive with to is used to expresses purpose hence " come..", but is there are rule to say why "speak" must be a bare infinitive (without "to")?

Is it something to do with a verb following the conjunction "AND"?

Any suggestions would be appreciated.