In the case of line four, this is usually done, but in the case of line 5, I have found exceptions. Lest some of you find all this confusing, let me summarize in a way that will cover nearly all cases, and perhaps put your minds at ease. For all cases, not involving a triple rhyme in lines 3-4, simply observe the basic rules given at the top of this discussion page under Rhythm. Rhyming Generally the rhymes should be precise or nearly so. Consonance is not allowed, nor are eye-rhymes.
Rhymes based on mispronunciations are dubious unless the distortion is reasonable to the speaker.
If, for example, the distortion is southern, Texan, Brooklyn, etc., the poem must indicate the the setting. There are a few cases where one can get way with last syllables nearly the same. With two syllable words this is more defensible. Still, this formulation is considered obsolete, so it should usually be avoided. As a general rule, repetition of rhyming words should be avoided.