Dumber is correct according to the normal formation of English comparatives. The frenchified form more dumb may be allowed, but it is stilted.
It is correct to say them both, but it matters on what you want to say.
The correct form is spicier; it's not correct to say more spicier. The forms for the adjective are: positive: spicy comparative: spicier superlative: spiciest
The second one is more correct.
More level.
Its more correct to say 'his job is teaching' Or better still would be 'He is a teacher' (you don't have to mention that its a job- that's pretty obvious)
if you mean "dumb and dumber" the tv series then it's "Bobo y Tonto"
That is a dumb question. Say it more specifically
It would be more correct to say, someone who.
It is correct to say them both, but it matters on what you want to say.
It is correct to say "...serves more than 6000..."
It would be more correct to say "How can I assist you?" or "How may I help you?"
No, it is more correct to say, "What day is it today?"
No way, because kitty has to set Dudley Puppy straight sometimes while Patrick just does dumb stuff that makes the problem worse. (No offense to the Patrick lovers! He is pretty funny when he does irrational stuff!)
No, it is not correct to say "Are you going to the park or no." It would be more grammatically correct to say "Are you going to the park or not?"
The more correct way to say this would be "It is humbling to be here". You can, as an alternative, say "I am humbled to be here."
No.
It is correct to say "him and his family." Using "him" as the objective form is grammatically more appropriate in this context.