Which preposition to use with alert

for Occurrences 76%

But Gifford, keenly on the alert for a sign of regard, was quick to take the hand and press it impulsively.

in Occurrences 31%

Wise in the lore of the game, a man more of the future than of the present, as he always foresaw that which some of his contemporaries were less alert in perceiving, it meant no easy task to be his successor.

to Occurrences 18%

He made one of the party to Williamsburg, and, though distraught in the conversation, was keenly alert to all he saw.

as Occurrences 10%

Gray Wolf, his wild mate, lay near him, flat on her belly, her forepaws reaching out, her eyes and nostrils as keen and alert as the smell of man could make them.

with Occurrences 7%

The proud dark eye, the little wanton curls peeping from the hood, the whole figure alert with youth and lifethey cheered my recollection as I trod that sour moorland.

at Occurrences 7%

There should be at least one noncommissioned officer constantly on the alert at the guardhouse, usually the corporal whose relief is on post.

of Occurrences 5%

So, keeping ever in the shadow of the great square keep, they went on, soft-treading and alert of eye till, being come to the angle of the wall, the friar stayed of a sudden and raised a warning hand.

than Occurrences 5%

And this may have been the reason why at first I failed to notice that anything unusual was about, and why I was less alert than normally; for it was not till after breakfast that the silence of our little party struck me and I discovered that Joan had not yet put in an appearance.

against Occurrences 4%

" Then it was I understood that even though the enemy did not see us while we were making our way over the plain, the sentinels in the fort were doubtless on the alert against just such an attempt on the part of the Indians, and there was little question but that they would fire at any moving thing which came within their line of vision.

by Occurrences 3%

He slept every afternoon for two hours, and was quite rested and alert by dinner time.

on Occurrences 2%

Dear R.Expectation was alert on the receit of your strange-shaped present, while yet undisclosed from its fuse envelope.

from Occurrences 2%

Now a man in that condition is likely to act early in the night for fear that sleep may otherwise get the better of him, and the sahib will do well to be keenly alert from the first.

toward Occurrences 2%

At the same time every hearer kept one ear alert toward the great open windows.

during Occurrences 1%

I stayed fully alert during the entire journey, keeping a watch on my things (I carried a haversack and a sleeping bag, both new) and having heard about pickpockets and other thieves I wanted to be doubly careful.

alongside Occurrences 1%

"We'll fill half a dozen of these old bags with shavings, and, as soon as it grows dark, we'll pull the Alert alongside the wharf, and tumble these sham provisions into her; then we will cover them up with that piece of sail, as if we wanted to keep them dry.

like Occurrences 1%

There are terms, of course" She glanced at him sharply: the expression in those somber eyes was often alert like a wild animal's, about to be attacked; only she had trained herself generally to keep the lids lowered.

out Occurrences 1%

"I wonder if they thought we would be foolish enough to send the Alert out of this creek, in the face of all those boats?"

Which preposition to use with  alert