Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
Crystallography is regular. It follows the -ied Conversion rule.
Use past time markers: "Yesterday, she crystallographied to the store."
No. Use "did not crystallography" (not "did not crystallographied").
The verb crystallography follows the standard English past tense conjugation rule. When forming the past tense, crystallography becomes crystallographied. This follows the -ied Conversion pattern, which is one of the most common conjugation rules in English.
Understanding why crystallography becomes crystallographied 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 crystallographied 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 crystallographied to the store." The past tense form does not change based on the subject — I crystallographied, you crystallographied, he/she crystallographied, we crystallographied, they crystallographied.