Be on the qui vive for and Be on the alert for

Be on the alert for and be on the qui vive for are semantically related. In some cases you can use "Be on the alert for" instead a verb phrase "Be on the qui vive for".

Be on the qui vive for and be on the alert for are semantically related. You can use "Be on the qui vive for" instead a verb phrase "Be on the alert for".