Three weaknesses of the continental army were

1. A major weakness for the Continental Army was manpower; they were always  short of qualified and capable men. General George Washington routinely had no  more than 20,000 troops at one time and place. It seemed each time the soldiers  made progress as a military unit, they would pick up their muskets and go  home to tend to their farms. Despite learning to bond as a group and handle  their muskets better, these frequent interruptions made it difficult to  develop any consistency.  

2. Very few Americans were trained well enough to survive in battle. Many could  shoot well enough behind protection, such as a tree, wall, or brush. However,  when faced with a wall of well-disciplined (and well-prepared) British soldiers, most colonists would likely turn and run.

3.

Aside from a shortage of men, the army also experienced a shortage of  supplies. Guns were scarce and gunpowder was even more so. In fact, Benjamin  Franklin suggested that it would be wise to arm the soldiers with bows, arrows,  hatchets, and knives. Food shortages forced many to simply leave the force altogether. Like food, uniforms and adequate clothing were just as rare. In winter  months, one could easily track the Continental Army by the bloody footprints.

Bonus: constant shortage of money, weapons, gun powder, food, clothing and medicine

Explanation:

History