Adverb of Manner
Do you still remember what an adverb is? Adverb has its own position in sentences. Adverb of manner (e.g. fast, well, quickly, carefully, etc) are generally placed after the verb or after the object.
(a) It is raining heavily.
(b) She speaks English well.
Notice that, in (a), the verb raining is the verb and heavily is placed after it. In (b), well is placed after the object English.
Adverb of Place/Time
Adverb of place (e.g. here, there, on the wall, in the box, in the classroom, etc.) or adverb of time (e.g. today, now, yesterday, next month, two weeks ago, etc.) is usually placed after the verb of intransitive (e.g. go, come, stay, sit, stand, sleep, etc.)
Notice that verbs like go, come, stay, sit, stand, sleep is in intransitive verbs forms. Therefore, place the adverb of time or adverb of place after it.
She goes to school.
I come here on time.
I just stay at home today.
He always sleeps in the bathroom.
Words underlined is the intransitive verbs and the italic words are the adverbs.
Adverb of Frequency
Adverb of frequency (e.g. usually, always, often, sometimes, etc) are usually placed before the verbs.
Linda often goes to the library every Saturday.
Andrew sometimes drops in house.
I always wake up early in the morning.
(a) They are usually late.
(b) He is always good at English speaking.
(c) We often are free on Saturday.
Notice that, in (c) is used when we would like to stress the context.
Besides, adverb of frequency is always placed like the examples below!
(a) After Adverb of Quality (e.g. very, so, etc.) as in;
He comes here very often.
(b) In the beginning or in the end of the sentence as in;
Sometimes he needs a help.
I love her always.
I write some articles in daily newspaper sometimes.
Usually I talk to him to discuss the matter.
I sometimes feel dizzy. (common position)
(c) Before an auxiliary (e.g. does, do, have to, can, used to, etc.) as in;
(a) She always doesn't know anything.
(c) He always can say it perfectly.
Adverb of Quality
Adverb of quality (e.g. very, so, rather, too, enough, etc) are usually placed before an adjectives.
(a) I am very hungry.
(b) He is so smart for this job.
(c) They are too late to come.
(d) Is it good enough for me?
Take notice in (d) and compare with this following example:
(a) Is it good enough for me?
(b) I don't have enough money to buy the gift for my mother.
To find the difference when each adverbs is used depends on what it modifies.
When enough modifies adjective, place enough after it and place enough before the noun if it modifies the noun. Look at this following illustration!