Dear Teachers

I know that "suggest" and "recommend" is not use followed by infinitve (suggest/recommend him to eat his meal)x but instead (suggest/recommend (that) he eats his mean)

My questions are:

1. Must the "s" be included in the above underlined context for both "suggest" and "recommend"

2. How to construct a negative sentence, is this ok? ( suggest/recommend (that) he does or do? not eat his meal) or this (suggest/recommend he not eats or eat his meal)

I don't know about anyone else, but it's not at all clear to me what you are asking. Maybe some complete example sentences would help.
It will often take the subjunctive, so "no s."

I suggest you eat that. I suggest you not eat that. I suggest he stop right there. I recommend he not take another step.