Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
Greatly is regular. It follows the -ied Conversion rule.
Use past time markers: "Yesterday, she greatlied to the store."
No. Use "did not greatly" (not "did not greatlied").
The verb greatly follows the standard English past tense conjugation rule. When forming the past tense, greatly becomes greatlied. This follows the -ied Conversion pattern, which is one of the most common conjugation rules in English.
Understanding why greatly becomes greatlied helps with spelling and pronunciation. Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
When using greatlied in writing, remember that it functions as a past tense verb and typically appears with time markers like yesterday, last week, or ago. For example: "Yesterday, she greatlied to the store." The past tense form does not change based on the subject — I greatlied, you greatlied, he/she greatlied, we greatlied, they greatlied.