As the name itself indicates a modifier is a word used to modify another word. A modifier should come close to the word it modifies. If it doesn’t, the result might be funny. Modifiers that seem to modify the wrong word are often called misplaced or dangling modifiers. This is a very common mistake.

Convert the following simple sentences into complex sentences, each containing a noun clause.

If the verb in the principal clause is in the past tense, the verb in the subordinate clauses, too, will be in the past tense.

Change the following compound sentences into complex sentences.

Although the conjunctions while and whereas have similar uses, there are some differences too. While, for example, can be used to introduce a time-clause. Whereas cannot be used to introduce a time-clause.

While reporting questions we use a verb like ask. Note that reported questions are not inverted. That means in a reported question the subject comes before the verb whereas in a direct question the verb comes before the subject. Other rules will remain the same.

The word then can be used as an adverb and a conjunction. Then means at that time. It can refer to both past and future. Note that then is not used to refer to the present.