ハ	ヒ	フ	ヘ	ホ
ha	hi	hu	he	ho

フ is pronounced halfway between "hu" and "fu".

Adding tenten to this row changes from a "h" sound to a "b" sound.

バ	ビ	ブ	ベ	ボ
ba	bi	bu	be	bo

Adding maru to this row changes from a "h" sound to a "p" sound.

パ	ピ	プ	ペ	ポ
pa	pi	pu	pe	po