Here it is plural since the subject icebergs is plural.
Verbs forms that are used with plural words (ending in S) will normally not end in S, and vice versa (e.g. icebergs contain; an iceberg contains).
The word public is singular and plural. It depends on what the phrase is.
Crisis should be singular. The plural meaning of the phrase is implied in the phrase itself. It means one crisis (singular) after another (singular).
The phrase "everyone of you" is technically singular because "everyone" is a singular pronoun. However, it is often used informally with a plural connotation to address a group of people.
Singular.
Singular
Plural because rays is plural and of love is a prepositional phrase
The correct plural phrase would be 'pictures do'. The singular is 'picture does'.
contener = to containcontengo - I containcontienes - you (informal singular) containcontiene - you (formal singular) contain (also 'he/she/it contains)contenemos - we containconteneis - you (informal plural) containcontienen - you (formal plural)/they contain
"Financial stability" is two words ;) The phrase is singular.
The phrase "One of the" is singular. It is followed by a plural noun to indicate that the specific item is just one part of a larger group.
Vives (singular); vivetis (plural)
Have is used with plural subjects (and singular I).I have to go now. We have to go. They haveto go too.Has is used with singular subjects.He has to go and she has to go as well.