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should hand in must be handed in be handed in were handed in
PROLONG PROTRACT EXTENSION EXPANSION
Must; doesn’t have to Do; don’t have to Must; don’t have to Must; mustn’t
must be made should be made will be made can be made
Must; doesn’t have to Do; don’t have to Must; don’t have to Must; mustn’t
on time in time for the first time all the time
prolong protract extension expansion
must be made should be made will be made can be made
to make up making up to be made up being made up
once whether previous just"
physical mental practical natural
a moment ago all of a sudden in no time all right
at all times all the time at a time at times
With; they can As; they can When; they can While; can they
after in time in time for in no time
refrigerant must be bled off the sensing line before adjustments are made all refrigerant must be pumped into the receiver before adjustments are made time must be allowed for conditions to stabilize in the evaporator before furtheradjustments are made all refrigerant must be routed through the dehydrator while changing the superheatsetting
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