Grammar notes 43

Nearing the finish now.

When すぐ(に) follows a verb it て form, it would mean immediately upon.
AてすぐにB would imply immidietly after A, B would apply.

ている, while being continuing in transitive verbs, will refer to a result when used with a intransitive verb.

てある has a simular meaning to ている, but ている together with a transitive verb implies someone has made something, while no such implications are done with intransitive and てある.

Grammar notes 42

When a stative verb exists, the subject should be marked by には rather than は or が.

A transitive verb acts on other things, and should therefore be restricted to animate subjects. Where the subject is inanimate intransitives should be used.

Intransitives are prefered over transitive verbs when it comes to forming passive.

Grammar notes 41

"How does one" is usually expressed どうやって, where やる is a colloquial equivalent to する.

While one should never sue the polite さん about oneself, an exception would be when parents are talking to children as they tend to use names that reflect the childs point of view.

Appending もいい or mayhaps also も良い at the end of a sentance in て form is a way of asking for permission.