Question

Identify the sentence type.

If that was the design, it certainly succeeded.

simple
compound
complex
compound-complex
fragment

Answer 1

Simple, compound, complex
http://www2.ivcc.edu/rambo/eng1001/sentences.htm

Answer 2

Fragments are parts of pieces; sentence fragments are the parts of an incomplete sentence. Sentence fragments are commonly found in the writings of both native and nonnative speakers.

How do I identify sentence fragments?
When you find yourself in one of the following situations, you have found sentence fragments:

You did not see a subject;
You did not see a verb;
You did see both a subject and a verb, but you also see a subordinate word in the sentence, which makes the “sentence” a subordinate clause, not a sentence.
(in other words, in numbers 1 and 2 above, they are also called phrases; number 3 is dependent clauses or subordinate clauses. They are the parts of a sentence or sentence fragments.)

Answer 3

i want to say complex

Answer 4

but it could be compound or complex

Answer 5

I agree with @Jeff666

Answer 6

@jeff666 It was complex thanks:)