| not seldom(expression, manner, regularity, frequency) |
| now and again(expression, manner, regularity, frequency) |
| now and then(expression, manner, regularity, frequency) |
| occasionally(adverb, manner, regularity, frequency) |
| once and again(expression, manner, regularity, frequency) |
| over and over(expression, manner, regularity, frequency) |
| overall(adverb, manner, regularity, frequency) |
| particularly(adverb, manner, regularity, frequency) |
| per usual(expression, manner, regularity, frequency) |
| periodically(adverb, manner, regularity, frequency) |
| predominantly(adverb, manner, regularity, frequency) |
| primarily(adverb, manner, regularity, frequency) |
| principally(adverb, manner, regularity, frequency) |
| recurrently(adverb, manner, regularity, frequency) |
| sometimes(adverb, manner, regularity, frequency) |
| spasmodically(adverb, manner, regularity, frequency) |
| successively(adverb, manner, regularity, frequency) |
| thick and fast(expression, manner, regularity, frequency) |
| time after time(expression, manner, regularity, frequency) |
| typically(adverb, manner, regularity, frequency) |