have at (?.)
- accept
- ambush
- assail
- assault
- assume
- attack
- attempt
- blitz
- buckle to
- bushwhack
- come at
- come down on
- crack down on
- descend on
- descend upon
- draw first blood
- embark in
- embark upon
- endeavor
- engage in
- enter on
- enter upon
- fall into
- fall on
- fall to
- fall upon
- gang up on
- get under way
- go about
- go at
- go for
- go in for
- go into
- go upon
- harry
- hit
- hit like lightning
- jump
- land on
- launch forth
- launch into
- lay about
- lay about one
- lay at
- lay hands on
- lay into
- lay on
- light into
- make war on
- move into
- mug
- pitch into
- plunge into
- pounce upon
- pound
- proceed to
- sail into
- set about
- set at
- set forward
- set going
- set on
- set to
- set upon
- square up
- strike
- surprise
- swoop down on
- tackle
- take on
- take the offensive
- take up
- turn to
- undertake
- venture upon
- wade into
