[subject] + [verb] + 得 + [adjective]
[subject] + [adjective] + (一)点儿 + [verb]
[subject] + [adjective] + 地 + [verb]
多, 少, 早, 晚, 快 and 慢 can go after the verb with 得 or in front of the verb. After the verb, they rate something that happened, or that happens as a rule. In front of it, they say how something should be done – in a request, an instruction or a plan.
The same adjective on either side of the verb gives a pair like this:
A request can also put the adjective after the verb, with no 得: 请说慢一点儿. A statement about what happened can't put it in front.
How well someone does something is rated with 得, even when English uses an adverb.
A two-syllable adjective in front of the verb usually takes 地, and describes the manner of one action as it happens. 得 after the verb rates the result. The 地 point covers the first use.