Short version: interrogative means question, declarative means statement. In the context of learning Latin you might see these words in relation to sentences (an interrogative sentence is one that asks a question "Is that a pig?", a declarative sentence is one that asserts something, "John is a pig.").
Also you'll see interrogative used to describe question words (think who/what/where/etc.); for example, an "interrogative pronoun" - that is, the type of pronoun used to ask a question (so in "Who threw that rock?" = Quis illum lapidem iecit? , who/quis is the interrogative pronoun).
"How are you today?" is an interrogative sentence because it is asking a question. It seeks information about the listener's well-being.
The phrase "look out below" is imperative, as it is a command or request.
Interrogative.
Exclamatory
imperative
declarative
interrogative
The word "what" can be used in an interrogative or a declarative sentence:What did she do? (interrogative)That is what we all want to know. (declarative)
Interrogative: What are you doing tomorrow? Declarative: You are doing something tomorrow.
It is Interrogative. An interrogative statements is anything that asks a question. The key words are Who, What, When, Where, Why and How. If a sentence starts with one of those, most likely it is interrogative.
There could be various reasons for a missing period, including pregnancy, stress, hormonal imbalances, excessive exercise, or a change in birth control methods. It is recommended to consult with a healthcare provider to determine the underlying cause and discuss appropriate next steps.
If you mean "Is the following sentence a declarative, interrogative, or exclamatory sentence, 'He huffed and he puffed and he blew the house down!' ?" Then it would be an exclamatory sentence.