If and when can be followed by will in indirect and direct questions.

 Here's a chart to help you understand how "if" and "when" can be followed by "will" in direct and indirect questions:

Question Type	Direct Question	Indirect Question
If + will	Will he come?	Ask if he will come.
When + will	Will you be there?	Ask when he will be there.

Here are some examples and exercises to help you practice using "if" and "when" with "will" in direct and indirect questions:

Examples:

1. Direct Question with "If + will": Will you go to the party if he will be there?

2. Indirect Question with "If + will": Can you ask her if she will bring the dessert?

3. Direct Question with "When + will": When will you leave for the airport tomorrow?

4. Indirect Question with "When + will": Do you know when the train will arrive?

Exercises:

1. Direct Question with "If + will": ___________ you come to the concert if we will get tickets?

2. Indirect Question with "If + will": Can you tell me if he ___________ be able to make it to the meeting tomorrow?

3. Direct Question with "When + will": ___________ you be done with your work when I will arrive?

4. Indirect Question with "When + will": Do you know ___________ the store will close tonight?

Answers:

1. Will
2. will
3. Will
4. when

Explanation:

In each of these examples, "if" or "when" is followed by "will" in a direct or indirect question to ask about a future event or action. In general, direct questions are used to ask someone directly about a future event or action, while indirect questions are used to ask about a future event or action without directly asking someone. It is important to use the correct word order and verb tense to convey the intended meaning and avoid confusion.

Here are some more exercises to help you practice using "if" and "when" with "will" in direct and indirect questions:

1. Direct Question with "If + will": Will you be able to come to the party if it will start at 8 pm?

2. Indirect Question with "If + will": Could you ask him if he ___________ be able to help us move the furniture?

3. Direct Question with "When + will": When will you know if you will get the job?

4. Indirect Question with "When + will": Do you have any idea ___________ they will finish the construction on the building?

Answers:

1. Can
2. will
3. Will
4. when

Explanation:

In these examples, "if" or "when" is followed by "will" in a direct or indirect question to ask about a future event or action. Remember that in indirect questions, the word order may be different from direct questions. It is important to use the correct verb tense and word order to convey the intended meaning and avoid confusion.