A1verb
كَانَ
kāna
to be / was
Example
كانَ الجوُّ جميلاً
kāna al-jawwu jamīlan
The weather was beautiful
Grammar
Hollow verb (Form I). Past: kāna, Present: yakūnu. One of the most important verbs in Arabic; used for past tense of 'to be' and in compound tenses.