Formal commands and requests

The Simple Present Subjunctive was once more extensively used than it is today. In modern American English, the Simple Present Subjunctive is still used in clauses beginning with the word that which express formal commands or requests. In the following examples, the word that is printed in bold type, and the verbs in the Simple Present Subjunctive are underlined.
e.g. They requested that she arrive early.
It is important that they be present at the meeting.
The demand that he provide identification will create a delay.

The main clauses of the preceding examples are they requested, it is important and the demand will create a delay. In the first example, the verb requested is in the Simple Past; in the second example, the verb is is in the Simple Present; and in the third example, the verb will create is in the Simple Future.

As illustrated in these examples, the use of the Simple Present Subjunctive in the subordinate clause of a formal command or request is independent of the tense of the verb in the main clause.

The Simple Present Subjunctive is more commonly used in formal English than in informal English. For instance, the sentence "He advises that you not be late," is an example of formal English. In informal English, the same idea would probably be expressed by the sentence "He advises you not to be late," in which the infinitive is used, rather than a clause requiring the Simple Present Subjunctive.

Wishes

The past tenses of the Subjunctive, and the auxiliary would, are used in the subordinate clauses of sentences which use the verb to wish in the main clause. In the following examples, the verb to wish is printed in bold type, and the verbs in the subordinate clauses are underlined.
e.g. He wishes that he were rich.
They wish that they had studied harder when they were young.
She wishes that you would come to the meeting tomorrow.

It should be noted that the word that can be omitted from a sentence which uses the verb to wish in the main clause.
e.g. He wishes he were rich.
They wish they had studied harder when they were young.
She wishes you would come to the meeting tomorrow.

The form of the verb used in the subordinate clause of a wish is independent of the tense of the verb in the main clause. As explained below, the form of the verb used in the subordinate clause of a wish is determined by whether the time of the action referred to in the subordinate clause is earlier than, the same as, or later than the time of the action referred to in the main clause.

A. An earlier time

When the subordinate clause refers to an earlier time than the main clause, the Past Perfect Subjunctive is usually used in the subordinate clause. In the following examples, the verbs in the Past Perfect Subjunctive are underlined.

e.g. We wished he had spoken to us.
I wish you had called earlier.
They will wish they had listened to us sooner.

In the case of a continuous, ongoing action, the Past Perfect Continuous Subjunctive may be used instead of the Past Perfect Subjunctive. In the following example, the verb in the Past Perfect Continuous Subjunctive is underlined.

e.g. She wishes she had been staying with us last week.

In each of these examples, the use of the Past Perfect Subjunctive or the Past Perfect Continuous Subjunctive indicates that the subordinate clause refers to an earlier time than the main clause.

B. The same time

When the subordinate clause refers to the same time as the main clause, the Simple Past Subjunctive is usually used in the subordinate clause. In the following examples, the verbs in the Simple Past Subjunctive are underlined.
e.g. When she was at the party, she wished she were at home.
Now that he is in China, he wishes he understood Chinese.

When we begin the trip, they will wish they were with us.

In the case of a continuous, ongoing action, the Past Continuous Subjunctive may be used instead of the Simple Past Subjunctive. In the following example, the verb in the Past Continuous Subjunctive is underlined.

e.g. They wish they were traveling now.

In each of these examples, the use of the Simple Past Subjunctive or the Past Continuous Subjunctive indicates that the subordinate clause refers to the same time as the main clause.

C. A later time

When the subordinate clause refers to a later time than the main clause, the Simple conjugation with the auxiliary would is usually used in the subordinate clause. In the following examples, the verbs in the Simple conjugation with would are underlined.
e.g. You wished she would arrive the next day.
I wish she would change her mind.
He will wish we would join him the following week.

In each of these examples, the use of the Simple conjugation with would indicates that the subordinate clause refers to a later time than the main clause.

D. Summary

The following table summarizes the verb forms most often used in the subordinate clauses of sentences expressing wishes.