BCE0043: Unexpected token: ) BCE0044: expecting ), found ';'. UCE0001: ';' expected. Insert a semicolon at the end

#pragma strict

var waterLevel : float;
var myParticles : ParticleSystem;
var cf = GetComponent();
private var isUnderwater : boolean;
private var normalColor : Color;
private var underwaterColor : Color;
private var fpc : UnityStandardAssets.Characters.FirstPerson.FirstPersonController;

//NEW VARIABLES
private var canSwim : boolean = false;
private var underGround : boolean = false;
var groundLevel : float;

function Start ()
{
normalColor = new Color (0.5f, 0.5f, 0.5f, 0.5f);
underwaterColor = new Color (0.22f, 0.65f, 0.77f, 0.5f);
fpc = GetComponent(UnityStandardAssets.Characters.FirstPerson.FirstPersonController);
myParticles.Stop();
}

function Update ()
{
if ((transform.position.y < waterLevel) != isUnderwater)
{
isUnderwater = transform.position.y < waterLevel;
if (isUnderwater) SetUnderwater ();
if (!isUnderwater) SetNormal ();
}

        //NEW
        if(transform.position.y < groundLevel)
        {
        	canSwim = true;
        	underGround = true;
        }
        
        else
        {
        	underGround = false;
        }
        
        if(isUnderwater && canSwim == true && underGround == false && Input.GetKey(KeyCode.E))
        {
            cf.relativForce = new Vector3(0, -200, 0);
        }
        else
        {
            cf.relativForce = new Vector3(0, 0, 0);
        }
        
        if(isUnderwater && canSwim == true && Input.GetKey(KeyCode.Q))
        {
            cf.relativForce = new Vector3(0, 200, 0);
        }
 }

function SetNormal ()
{
RenderSettings.fogColor = normalColor;
RenderSettings.fogDensity = 0.002f;
fpc.m_GravityMultiplier = 20;
fpc.m_JumpSpeed = 20;
fpc.m_RunSpeed = 6;
//chMotor.movement.maxSidewaysSpeed = 6;
myParticles.Stop();
canSwim = false;
}

function SetUnderwater ()
{
RenderSettings.fogColor = underwaterColor;
RenderSettings.fogDensity = 0.03f;
fpc.m_GravityMultiplier = 2;
fpc.m_JumpSpeed = 5;
fpc.m_WalkSpeed = 4;
//fpc.movement.maxSidewaysSpeed = 4;
myParticles.Play();
}

These (3 occurrences) look wrong:

GetComponent<ConstantForce>(Vector3(0, -200, 0));

You probably want something like:

var cf = GetComponent<ConstantForce>();
cf.relativeForce = new Vector3(0, -200, 0);