1. When asked directly about his alleged affair, the presidential candidate only equivocated.2. When I asked my boyfriend where he was going he stammered his answer. Later I found out he was lying.
 equivocate stammer; falter mumblestammer 貼切又好用. mumble指說話小聲聽不清楚equivocate = 使用模糊不清的語言來避免承諾某件事或蓄意誤導他人，或含蓄的說謊以逃避責任，意思相當於左右而言他、含糊其詞、閃爍其詞、支支吾吾、拐彎抹角等。
當我問男友要去哪裡, 他支唔其詞, 後來我發現他說謊.
It is inecent of him to take money away from his divorced wife.