1. Which mood is used in the following sentence?

When will the tickets go on sale?
a. indicative******
b. imperative
c. conditional
d. interrogative

Please select the correct verb tense that is used in the sentences below.
2. That company has been making surfboards since the 1960s.
a. present perfect progressive******
b. present progressive
c. past perfect progressive
d. past progressive

3. We had been listening to the radio when the lights went out.
a. past progressive
b. present progressive
c. past perfect progressive******
d. present perfect progressive

4. Kalman had been sleeping throughout that memorable day.
a. past progressive
b. past perfect progressive******
c. present progressive
d. present perfect progressive

5. As of next month, my best friend and I will have known each other for 12 years.
a. past progressive
b. future perfect progressive******
c. present perfect progressive
d. present progressive

I disagree. #1 is not in the indicative mood. The word "when" and the question mark indicate a different choice.

http://www.grammar-monster.com/glossary/interrogative_sentence.htm

All are correct! Congrats on some difficult identifications!!

Thank you Writeacher!!

Sorry. I learned this as mood. Verb mood is different from type of sentence. Girly girl will need to decide.

http://grammar.ccc.commnet.edu/grammar/verbs.htm#mood

I thought so too, Reed, until I looked it up.

https://www.google.com/search?source=hp&ei=AVjmWtaLM4HOjwSn94eoDQ&q=indicative+mood&oq=&gs_l=psy-ab.1.1.35i39k1l6.0.0.0.4923.2.1.0.0.0.0.0.0..1.0....0...1..64.psy-ab..1.1.139.6...139.QQJHO3sYucU

It seems there are differing definitions of what a "mood" is in English grammar. Some authorities say questions are in the indicative mood (there are only three moods). Others define more than three moods, including "inquisitive". https://en.oxforddictionaries.com/grammar/moods

1. The mood used in the sentence "When will the tickets go on sale?" is indicative. This is because the sentence is making a statement of fact or asking for information, rather than giving a command, expressing a condition, or asking a question.

To determine the mood, we should understand the function of each option:
- Indicative mood: used to make statements or ask questions about facts or realities.
- Imperative mood: used to give commands, requests, or instructions.
- Conditional mood: used to express possibilities, hypothetical situations, or conditions.
- Interrogative mood: used to form questions.

In this sentence, we are asking about the timing of ticket sales, which is a factual question, so the indicative mood is appropriate.

2. The correct verb tense used in the sentence "That company has been making surfboards since the 1960s" is present perfect progressive.

To determine the verb tense, let's understand the options:
- Present perfect progressive: indicates an action that started in the past, is still ongoing, and has relevance to the present.
- Present progressive: indicates an action happening at the current moment.
- Past perfect progressive: indicates a continuous action that began and ended in the past before another action.
- Past progressive: indicates a continuous action that was happening in the past.

In this sentence, the action of making surfboards started in the past (the 1960s), is continuing in the present, and has relevance to the present time. Therefore, the present perfect progressive tense is used.

3. The correct verb tense used in the sentence "We had been listening to the radio when the lights went out" is past perfect progressive.

Here are the options explained:
- Past progressive: indicates a continuous action that was happening in the past.
- Present progressive: indicates an ongoing action happening in the present.
- Past perfect progressive: indicates a continuous action that started in the past, continued up until another past event, and emphasizes the duration of the action.
- Present perfect progressive: indicates a continuous action that started in the past, is still ongoing, and has relevance to the present.

In this sentence, the action of listening to the radio was happening continuously in the past and had been ongoing until the lights went out. Therefore, the past perfect progressive tense is used.

4. The correct verb tense used in the sentence "Kalman had been sleeping throughout that memorable day" is past perfect progressive.

Here is a breakdown of the options:
- Past progressive: indicates a continuous action that was happening in the past.
- Past perfect progressive: indicates a continuous action that started in the past, continued up until another past event, and emphasizes the duration of the action.
- Present progressive: indicates an ongoing action happening in the present.
- Present perfect progressive: indicates a continuous action that started in the past, is still ongoing, and has relevance to the present.

In this sentence, the action of sleeping started in the past, was ongoing throughout the memorable day, and had been happening continuously. Thus, the past perfect progressive tense is used.

5. The correct verb tense used in the sentence "As of next month, my best friend and I will have known each other for 12 years" is future perfect progressive.

Let's break down the options:
- Past progressive: indicates a continuous action that was happening in the past.
- Future perfect progressive: indicates a continuous action that will be ongoing in the future, emphasizing duration until that point.
- Present perfect progressive: indicates a continuous action that started in the past, is still ongoing, and has relevance to the present.
- Present progressive: indicates an ongoing action happening in the present.

In this sentence, we are talking about a future point in time (as of next month) when the action of knowing each other will have been ongoing for 12 years. Hence, the future perfect progressive tense is used.