• to nose after, to nose for
• to be sick for sg, to pant after sg, to pant for sg, to thirst after, to thirst for, to yearn after sg, to yearn for sg
• to be short of breath, to pant, to pant for breath
• to trail sg, to trail sg along
• to pant after sg, to pant for sg
• to aspire after sg, to aspire to sg, to crave after sg, to crave for sg