Confused Adverbs

Before and Ago

Incorrect Usage: (a) I met my teacher before one month.

                                  (b) Henry got a promotion; he had joined the new office just six months ago.

                                 

Correct Usage: (a) I met my teacher one month ago.

                            (b) Henry got a promotion; he had joined the new office just six months before.

Incorrect omission of prepositions

Omission of the before names of musical instruments.

Don’t say: I play violin, but not piano.

ü  Say: I play the violin, but not the piano.

Use of the wrong Grammar

Using till instead of before or when.

Don’t say: I’d reached the school till the rain started.

ü  Say: I’d reached the school before the rain started.

ü  Or: I’d reached the school when the rain started

Before or when introduces a clause of time, if the verb of the main clause denotes an action completed before that of the time clause.