common mistakes

Aim at, not on or against.
Don't say: She aimed on (or against) the target
Say: She aimed at the target.

Note Use the preposition at to denote direction: throw at, shout at, fire
at, shoot at. Shoot (without the at) means to kill: He shot a bird ( = he hit
and killed it).

Angry with, not against.
Don't say: The teacher was angry against him.
Say: The teacher was angry with him.

Note 1 We get angry with a person but at a thing. He was angry at the
weather (not: with the weather)

Note 2 Also annoyed with. vexed with. indignant with a person but at
a thing.
Anxious ( = troubled) about, not for.
Don't say.' They're anxious for his health.
Say: They're anxious about his health.

Note
· Anxious meaning wishing very much takes for: Parents are anxious
for their children's success.

Arrive at, not to.
Don't say: We arrived to the village at night.
Say. We arrived at the village at night.

Note Use arrive in with countries and large cities: Mr Smith has arrived in
London (or New York. India, etc.)

9 Ashamed of, not from.
Don't say: He's now ashamed from his conduct.
Say: He's now ashamed of his conduct.

Note It isn't correct to use ashamed of meaning shy . Ashamed means
feeling shame or guilt about something. Shy means feeling nervous with
someone, Instead of saying: I'm ashamed (or shamed) of my teacher, say:
I'am shy of my teacher.