ثَقَبْنَا • (ṯaqabnā) (form I)
ثُقِبْنَا • (ṯuqibnā) (form I)
ثَقَّبْنَا • (ṯaqqabnā) (form II)
ثُقِّبْنَا • (ṯuqqibnā) (form II)