patri is there some relation in terms of meaning to help me to memorize the groups ? Not very often, no. Sometimes you'll find a few verbs that have similar meanings which all take the same verb pattern, but often you'll find that there is no consistently coherent grouping of verbs, so you have to memorize most of them separately.
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patriis there some relation in terms of meaning to help me to memorize the groups ?Not very often, no.
patriI suggest that you go...Correct. Suggest and recommend are found in the same grammatical patterns.